A/N: I have been fixated on the idea of a timebaby ever since I started shipping these two. So, I finally gave into the headcanons and decided to write this fluffy piece of mush; it's all simply for fun. This will be a non-linear series of one-shots/drabbles dealing with a pregnant River or The Doctor's and River's children. I couldn't resist. I hope you can enjoy this stupid little idea of mine.
"Oh, I know. Alexandra!" The word burst through his lips with an unnecessary amount of pride.
River played with her fingernails, and clicked her tongue. "Oh, no, no. That's far too common. We need to find her something really quite spectacular, don't you think? I mean, she is the only one, Sweetie."
"It must get awful boring," he scoffed, "spending the whole of ten months just laying around." The cotton fabric of River's shirt muffled her husband's voice.
One hand rested on a corner of her middle, millimeters from where The Doctor's jaw laid on her belly. "Not when you're in a nice hot water bed," River sighed.
The Doctor gave a quick kiss to the top of River's stomach, and then scurried up the giant blue bed to give a not-so-quick kiss to his wife. She let out a soft laugh with his lips pressed to hers. He pulled away.
"What is it?' He beamed, letting the tiniest giggle come through his words.
"That you still like to kiss me," she rested a hand on his chest, fiddling with the sparse hair, "even though I'm as big as a house." Her eyes grew greener when she feigned pouting lips.
"Oh, you're beautiful," he whispered before peppering her neck with his mouth. "Gorgeous," kiss, "mother of my child," kiss, "Melody Pond. But I think it looks more like a planet." The Doctor felt a playful yet stinging slap on shoulder as his hands wandered to her torso, palm splaying over the swell. His touch was answered by a strong thump underneath River's skin. The Doctor jerked his eyes downward, and then to meet River's, an obscene amount of wonder dripping from his face. "Did you feel that?!"
"She does live inside of me, you know."
"It's so strange, that there's a little person in there."
"Oh well, River," he said smugly as possible, "Wonderful. Beautiful. But not miraculous. Just a simple biological function." He left a lingering kiss on the underside of her jaw.
"Oh, okay then. Let's see," she began to count on her fingers, "there's the 'most Timelords are sterile' thing, there's the thing about my age, there's the whole 'last of our species' thing, there's the two hearts-" She was cut off by yet another kiss.
He pulled away, eyes heavy-lidded with so much affection. "Ok, miraculous."