The Doctor was scanning an Atmos engine as he heard the door open; Martha was glaring at him. "Touchy." She said.

He glanced up. "Well it's true."

"Col. Mace is a good man." She protested.

The Doctor rolled his eyes. "People with guns are usually enemies in my book. You seem to be at home." He said putting back his sonic screwdriver.

"If anybody got me used to fighting it's you." Martha shot back.

"Oh, so it's my fault." He replied looking thru a file cabinet.

She slammed the cabinet drawer.

"Oi!" He exclaimed.

"Yes it is your fault and how long has Donna been with you?"

The Doctor shrugged. "I don't know."

She punched his arm. "You're lying."

"Ow, okay a couple of months." The Doctor admitted.

"Does she know about your other companions?" Martha asked.

He nodded. "Yes, and in answer to your next question, no we're not a couple."

Martha scoffed. "Is that what you think? For your information I've moved on."

The Doctor smiled. "Good. That's what I like to hear."

She smiled at him before punching his arm again.

"Ow, now what did I do?" He said rubbing his arm.

"That's for not having faith that I could get over you." She frowned.

The Doctor smirked and placed his hands gently on her shoulders.

"Martha I never had any doubt that you could move on. You're a very strong person and I'm thrilled you're engaged."

Martha smiled. "Thank you, Doctor. That means everything."

He tenderly kissed her on the cheek.

"Now I would love to stay and get punched some more but I've got to go find Col. Mace." The Doctor teased.

She playfully stuck her tongue at him as he winked at her and left.

Martha leaned against the door frame and bit her lower lip as she watched the Doctor catch up to the Colonel.

Closing her eyes she caressed her cheek still feeling his soft lips on her skin.