A/N: Hello everyone! I'm glad you decided to open this up, because I need to know what you think. I've tried writing a lemon before and well, it didn't work out that well. I know this is kind of long but I tried to make things more detailed. If you have any thoughts or suggestions, PLEASE let me know! I will be willing to listen to your advice.

Without further ado, I present to you, Spontaneous.

"Hey, hey," Jacob said as I walked into the kitchen.

I jumped at the sound of his deep, husky voice. I should have never given him a key to the house. He chuckled at my surprise and I glared at him.

"Sorry," he apologized, moving closer to me. He had his arms stretched out in front of him, ready to embrace me in a hug.

"Hello, Jake," I breathed, wrapping my arms around his torso. The warmth of his chest radiated against me and warmed my cold, wet form. His large arms made a cage around me, holding me tight to him.

He buried his head in my hair and inhaled. "How was your day?" He asked, brushing a loose piece of hair from my face.

"It was okay, I guess," I muttered. My hand drifted up his chest to his chin. I felt the stubble scratch across my palm.

I felt him smile beneath my hand and place his own on mine.

"Are you sure?" Jacob leaned back to look at me. I just raised an eyebrow at him.

"Like you wouldn't know."

He faked an appalled expression.

"No, I wouldn't."

I rolled my eyes and headed toward the refrigerator, grabbing a few ingredients for some dinner. I made sure to grab extra, seeing as Jacob was here.

"Don't act like I didn't know you were there. Newton even saw you pacing back and forth."

Jacob leaned against the counter and watched me prepare spaghetti.

"Well, I was bored and the pack didn't need me. Plus, it was a Saturday and you weren't free to do anything." He puckered his lip at me.

I bit the inside of my lip to keep myself from attacking his lips right there. He was so adorable when he pouted. I felt my heart begin to race.

I laughed. "Of course. You could've gone cliff diving, you know."

"Nah, I just wanted to watch you all day," he whispered, scooting closer to me. His hand trailed to mine.

I closed my eyes and tried to lead my mind elsewhere than the gutter. It was hard, but I somehow did it.

"Jake," I warned, knowing full well that Charlie would be home any time. I didn't want my dad to see Jacob pressed up against me in a not so appropriate way.

"I know, I know," he moped, pulling back his russet hand. I smiled sadly at him.

I continued preparing dinner, busying myself. Jacob still leaned against the counter, watching me with black, probing eyes. I didn't feel uncomfortable under his gaze. Instead, I relished it.

He always made me feel like the only one in the world; the only girl that ever made him look twice. It was really a boost for my confidence and I was glad that he had helped me through my depression. I was really messed up after Edward left me and I didn't want interaction with anyone besides the make-believe voice in my head.

Now that I looked back on that time, I think I acted so stupid. Didn't Edward want me to be happy? And didn't I turn out to be happy in the end?

The answer was yes, I was happy and I wouldn't let myself be hurt by what Edward did to me anymore.

I heard Charlie's cruiser park out in front of the house and I hurriedly scooped noodles onto three plates.

Jacob got the sauce out of the microwave and dumped some on the noodles. As he set the plates on the table, I got out three cups and filled them with milk.

Charlie walked into the kitchen, inhaling as he smelled the spaghetti.

"Mm, smells good, Bells," he said, un-buckling his gun belt and hanging it on a hook.

I smiled and gestured for him to sit down. "Eat up."

Dinner passed in a comfortable silence, the only sound being our silverware clinking against the Corelle plates. Although, the fleeting glances Jacob kept giving me sent shivers down my spine.

When dinner ended, I cleaned up the dishes as Charlie headed towards the living room. Jacob stayed behind and helped me clean up.

Just as I was finishing the drying, Jacob wrapped his arms around me.

"My house tonight?" He asked, flipping me around to face him.

I leaned up on my toes and brought his face to mine.

"Are you going to steal me away in the night?" I joked, tapping his nose with my finger.

He grinned and nodded. "That is exactly what I am going to do."

I smiled against his warm, soft lips. "All right with me."

Jacob chuckled and pressed his lips to mine. All thoughts in my mind ceased as our lips moved in sync. Our tongues twisted together and his hot breath blew into my mouth.

Before we could get into our make-out session, Charlie cleared his throat from the doorway. We immediately separated and a blush spread over my cheeks. I looked down at the floor while Jacob said his goodbyes. I gave one, half-hearted wave—knowing that he would be here again—and turned back around to the sink. I passed a finger over my swollen lips, reveling in the high of the kiss.

"Night, Bells," my dad said, shuffling his feet, feeling uncomfortable at the awkwardness of finding Jacob and I.

I turned around, still looking at the floor. "Night, dad."

He trudged up the stairs, grumbling the whole way up. I put everything away, flicked off the light, and headed up the stairs as well. I stumbled once on my way up and praised myself for not tripping more.

Charlie had already shut the door to his room, so I took advantage of the bathroom. I took a quick shower, letting the warm water ease my strained muscles. I made sure I shaved everywhere there might be hair and scrubbed my skin till it was a glowing pink. I brushed my teeth—three times—and towel dried my hair.

I headed off to my bedroom and made sure I locked the door. I was sure Charlie wouldn't be suspicious, as I had locked my door before.

I shuffled around in my dresser until I found a nice looking bra and panties. I wasn't one for lace and all that frilly stuff, so nice and simple would have to do. I hopped around with anticipation as I put on the set.

I flipped back through my mind to all the other times we had had sex. I still got chills every time I thought the word. It was a total of five times, but they were all pretty good. Okay, not pretty good—amazing, absolutely wonderful. I got wet just thinking about them.

Jake was never too rough with me. He always took it slow and sensual, never too pushy. He was a gentleman, to say the least, and I loved him for it. But I was willing to go a little faster, a little rougher tonight.

He would be surprised and would try to persuade me out of it. I would stand my ground and refuse. It was time for me to please him and not just myself.

After I was done throwing on some pajamas, I crawled under the sheets and waited to hear the howl that would signal me to open my window. I always felt like Juliet, staring at the moon and dreaming of Romeo. Just I don't think she was thinking of him in those kinds of ways.

I was about to sneak down the stairs and call Jacob, when I heard his signature howl. I bit my lip as I skipped to my window and unlatched it. I could see Jacob's wolf form hovering nearby and moved out of the way as I saw him change into his human form. He was about to climb up the small tree that stood outside my window. How he climbed the thing, I didn't know.

I heard the trees branches scrape across the front of the house and I held my breath as Jacob jumped in. His feet made a light thud as he landed. We both listened for any sign that Charlie had heard, but his snoring was all that reverberated back to us.

Jacob grinned at me, pulling me into his arms. Of course he had no shirt on, and I could feel the contours of his chest press against my face.

"Ready?" He asked me, placing his hands on my shoulders.

I looked at him nervously, then at the window.

"Ah, come on, everything will be alright." He placed a hand over his heart. "I promise."

I narrowed my eyes ay him.

"I could just walk down the stairs and out the front door. There are no lives at risk there," I pointed out, making my way to my bedroom door.

Jacob grabbed my wrist and pulled me back to him.

"Would I ever let you get hurt?" He asked, hurt shadowing his eyes.

I didn't mean to make him think that I didn't trust him. In fact, it was quite the opposite; I trusted him with everything I had in me.

I smoothed out his troubled brows with my hand.

"I'm sorry, it's just that, well, it's a long way to the ground."

Jacob rolled his eyes at me.

"You jumped off the highest cliff in La Push and you're afraid of a two story house?"

Okay, so it did seem a little backwards.

I sighed. "Okay."

Jacob smiled and scooped me up into his massive arms. He walked towards the window, getting ready to jump.

"Wait!" I whisper-shouted, making him pause and look at me. "I forgot my bag." I had an overnight bag specifically for these spontanious sex nights.

"Oh, please," he mumbled, setting me down.

"Jacob, what would the neighbors think?" I teased, poking his shoulder.

"Exactly what they should be thinking," he answered.

I gave him the duffel bag and he hoisted it onto his shoulder. He picked me back up in his arms and got ready to launch himself out of the window.

I felt the wind whoosh around me, splaying my hair across my face. It was only a short distance down and once Jacob set me on my feet, I regained my stomach.

We walked hand in hand towards the woods. His car would be parked just of out sight of the house.

"Now that wasn't bad at all, was it?" Jacob asked, squeezing my hand. I just shrugged.

Crickets chirped around us as we continued on to the car. Jacob massaged my hand along the way.

The Rabbit came into view and Jacob hurried ahead. He unlocked the passenger door and held it open for me. I laughed while climbing in.

He hurried around to the driver's side and started up the car.

My stomach turned anxiously for the night to come and I tried not to hyperventilate. I stared out of the window, seeing nothing but black blobs of trees.

Jacob fiddled with the radio until he found some rock station. I raised an eyebrow at him.

"What?" he asked, grinning at me.

"Nothing," I answered, staring back out the window.

"Does it not turn you on?" Jacob joked. I slapped his arm, knowing full well my hand would hurt later on.

"Quite the contrary, Jake dear. I am definitely turned on. Especially when you bang your head to the music." I batted my eyelashes at him. He gave me a blank look, seeing my flirtatious smile.

He turned back to driving and was soon bopping his head around to the music. I watched his hair shine in the moonlight. I wanted to tangle my hands through that silky black hair and hear him moan at the wonderful feeling.

My heart raced as I thought about this and I clenched my hands on the seat. Jacob peeked at me and flashed a smile.

I realized a few minutes later that Billy would be home.

"Jacob? What about Billy?" I asked, turning to look at him in the seat.

He blinked his eyes at me, like I had interrupted him from some thought.

"Oh, well, what about him?"

"Won't he be there?"

He shook his head. "Nah, he's spending the night at one the elder's houses. They're watching old football games."

"Oh, good," I commented, staring back out of the window.

The rest of the ride to the reservation consisted of me staring at Jacob from the corner of my eye. I just couldn't keep my eyes off of him.

The small, red house came into view and I grabbed my bag from the backseat. Jacob and I trudged through the muddy ground to the front door. He fidgeted with the lock until the door swung open. He flicked on a light and I set my blue bag on the couch.

I turned back around and found Jacob leaning against the wall, arms crossed over his chest, gazing at me. The burly muscles on his arms stood out prominently, as I soaked in the perfection before me.

He sauntered over to me and grasped my hands. He tugged me closer to him and I complied. I could hear his heart beating fast through his chest.

Jacob tilted my chin up, running his thumb across my lips. They opened under his touch and I shut my eyes in bliss. I felt him move closer and I eagerly pulled him in.

I wrapped my arms around his neck and twisted the hair that lay there. He rested his forehead against mine and gave a little moan.

We stood there for some time, enjoying the feeling of being close to each other. Our breathing moved in sync and our hearts fluttered together.

Jacob nuzzled my nose and nipped it. I turned my head up and drew his head closer to me. I bit his bottom lip, asking permission to let me kiss him. He granted my request by kissing me full on the lips.

His soft mouth moved against mine, as mine moved with his. Our lips fought for control, wanting the other to open their mouth. I was defeated and sucked his tongue into my mouth. My hands gripped his black hair as Jacob tightened his hold on my back.

I was the first to run out of breath and I had to pull away. But Jacob's lips never left my skin and his mouth trailed down my neck. I felt goose bumps pop up on my arms and I shuddered at the pleasure.

When I regained my breath, I jerked his head back up to mine and kissed him forcefully. My breathing was extremely loud, but so was his.

Jacob began pushing me backwards, guiding me to the one place where we would be able to really start. I did my best not to trip and soon he got impatient and wrapped my legs around his waist. I felt his erection press against me and I moaned.

My back braced against the wall next to his bedroom, one of his arms supporting me as he swung open the door. He stumbled inside and slammed the door shut behind him. I heard his legs hit the side of his bed and we fell.

Jake supported himself on his elbows, but continued kissing me with passion. I was beginning to lose all thoughts and I was melting from my arousing. I locked my already wrapped legs around his waist and pulled him closer to me. I needed to feel him. Now.

"Jake," I whimpered, as he left butterfly kissed along my collarbone. His hand inched its way under the hem of my shirt.

"Bella," he sighed back. I ran my hands up his bare chest, memorizing the chiseled muscle.

Jacob's warm hand slithered its way up to the bottom of my bra. He rubbed a finger outside of the material and I felt my nipples harden. He lifted me up with one hand as he unclasped my bra with the other. He hitched my shirt over my head and ripped the black bra off.

"Beautiful," he murmured, dipping his head down and kissing each breast. I gasped aloud as his tongue made contact with a hard peak. His right hand circled my left breast as his left hand gripped my side.

I moaned at the arousing sensation, throwing my head back. I let out a 'ah' as Jacob bit down on my nipple. I clutched his shoulders, my nails digging into his skin. Somewhere behind all the pleasure, I hoped I hadn't hurt him.

Jacob's hands and mouth did not relent their teasing and my panties were soon dripping with arousal. I was sure that by now Jacob had smelled the sweet scent.

His hand slipped down my stomach to my pajama shorts. He ripped them off as quickly as he could and I wiggled out of my panties. He ran a hand just above my arousal and I bucked my hips. He placed one finger on my clit and flicked it.

I bit my lip to the point of blood to keep back my scream. I tried as best I could to not yell out as he continued causing fire in my stomach.

After a while, his mouth drifted back up to mine and he pulled his hand away. I pouted at him and he chuckled at me. I stroked his neck and brought the side of his face to my lips. I kissed up his cheekbone to his ear. I nibbled his ear and he quivered.

I trailed my hand down his chest and his breath caught in his throat as I dipped my hand closer to the waist of his cut off jeans. Tremors ran throughout his body as I slipped my fingers beneath the top.

"Bells…you don't have to…do that," Jacob gasped, trying to keep the rational side of his mind. I was sure the other, more one mindset side, was screaming at him to let me continue.

I trailed my nose up his jaw and up the right side of his face. I placed my lips next to his.

"But I want to, Jake," I whispered.

I felt his chest rise and fall against me with his gasping breaths. He brushed my brunette hair from my face with a shaky hand. His eyes searched mine to see if there was any hesitancy in them and then nodded his head.

"I…guess…If you want…to."

I pecked his lips and dragged my nails lightly down to his pants. His erection had made a tent of them and I unbuttoned his blue jeans and unzipped the zipper to free it. While he shrugged them off, I placed my hand on his boxer covered shaft. He stopped what he was doing and groaned.

I smirked and rubbed my hand along his length. He quickly shooed off his pants and supported himself on his elbows again. I pushed down the elastic of his boxers and he took the rest off.

I stared down at the hard flawlessness of an erection before me. Jacob leaned down to whisper huskily in my ear.

"I'm all yours."

I looked up and beamed brightly at him. Even though I already knew that, it was nice to hear again.

"I love you," I said, pushing a sweaty strand of hair from his face. His eyes crinkled as he smiled down at me.

"I love you, too," he mouthed against my lips. I kissed him with as much passion as I had.

I rubbed my hands down the sides of his chest and back down to his erection. I let my hand hover just over the tip of his erection, teasing him a little.

"Bella," he grumbled, laying his head on my shoulder. I chuckled and grabbed the full length of him in my hand. The velvety smoothness of him always startled me. I didn't think something so hard could be so silky, but he never did fail to amaze me.

I pumped my hand up and down slowly along his erection. I wasn't sure what I was supposed to do, seeing as this was my first time touching him here. But it seemed like I was doing the right thing because Jacob was breathing hard against my neck.

Every once in a while, I would speed up my pace, feeling his throbbing penis stiffen ever so slowly. Jacob brushed my hair from my shoulder and sucked it, leaving a mark. I felt myself arouse more.

Soon, Jacob was thrusting into my hand, trying to get the release he wanted so badly. I felt him freeze as a wave a pleasure rocked him and his throbbing shaft burst. Sticky, white cum sprayed across my stomach.

Jacob grunted as each wave came and went, leaving him breathless when it all ended. He collapsed against me, not fully laying his weight on me. The skin on skin contact turned me on more and I tried not to jump his bones.

As Jacob calmed his breathing, I trailed my fingers up his back. Goosebumps poked out where ever I touched and I could feel his penis hardening again.

"Bell…a?" Jacob asked, studying me.

"Hmm?"

"That was…that…There's no words…for it," he answered, blowing across my ear. I shivered.

"I'm glad," I said, feeling myself sweat at his closeness.

He chuckled against my neck and rubbed a hand across my cheek. He lifted himself up off me and I frowned. He chortled at my expression.

"I was getting there. Give me one sec," I rolled my eyes at Jacob and he quickly got up off the bed. He hurried over to his dresser and pulled out a box of condoms. He ripped a packet open and slid one over his now hard erection.

Jacob clambered back on the bed and positioned himself at my entrance.

"You ready?" he asked, scanning me.

I yanked him back down to me. "Am I ever."

He laughed and placed a warm hand on my cheek. I felt his tip press into me and I bit my quivering lip. Painfully slow, he pushed himself into me, letting me get used to his size. But I was impatient and I wanted him that instant. I encircled his back with my legs and thrust my hips up.

We moaned together as we felt the depth—or length in my case—of the other. My stomach was on fire and my heartbeat pounded in my ears.

Jacob pulled himself almost all the way out and thrust back in. I gasped and clenched my hands in his hair. He did this a few more times before getting in a rhythm.

Our sporadic breathing and the slight slurping sound of my juices lubricating Jacob's shaft echoed around the room. Our cries of pleasure would escape every once in a while.

I called out Jacob's name as he quickened his pace. I shifted just slightly and screamed out when I did. My g-spot had been found and I was now on the edge of an orgasm. My eyes watered and I huffed with effort.

My hips met his thrusts and I kept a chokehold on his neck. His lips kissed anything he could find. Cheek. Lips. Ear. Eyelid. Neck.

Jacob hastened his thrusts and I was flying soon after. Stars exploded in front of my eyes and a long moan escaped my lips. A glowing warmth spread throughout my body, leaving me breathless when the trip was over.

My orgasm had milked Jacob's and he was flying after me. He gripped my arms tightly thrusting hard into me one last time before he exploded. He shuddered for a few seconds and came back down from his high. We shivered together, chest heaving and gasps blowing onto each others necks. My arms were hooked around his back and I squeezed him.

Jacob smiled into my shoulder as he butterfly kissed up my neck to my lips. We kissed slowly and passionately, conveying our love through our mouths.

Jacob laid his cheek against mine, warming it even more.

"I…I love…you," I gasped out to him.

He turned his head and kissed my cheek. "I love…you, too."

Jacob flipped us over, so that I was on top and he was on the bottom. He placed his arms around my waist while I put mine above his head.

Our breathing slowed eventually and I began to yawn. Jacob's chuckled vibrated his chest and I laughed along.

"Get some sleep, Bella, honey," he murmured softly to me, running a hand through my tangled hair.

I complied and snuggled into his side.

Before I could completely fall asleep into that endless dreamland, I whispered "Thank you."

"No, thank you," Jacob answered, tracing patterns on my hand.

I peeked up at him through hooded eyes. "Why?"

He smiled at me. "Just because."

I rolled my eyes sleepily and poked him. "Whatever."

"Goodnight, my Bella," he sang softly.

"Night, Jake…"