A/N: Inspired by this picture of a sleeping David Tennant.
Beta'ed by wihluta.



"Hi, honey, I'm home!" Jack yelled, laughing, but when there was no response, he shrugged and went directly into the bathroom instead. The Doctor would be either studying or asleep, and in either case there wasn't much point in interrupting him just yet.

The water ran grey for a bit after he got in. Jack actually enjoyed his temporary job at the garage, even though it did tend to leave him covered in grime at the end of the day. He liked having something to do with his hands that didn't involve weapons for a change, fixing things instead of destroying him. He had a couple of very pretty co-workers, too. Attractive people bent over expensive cars, what was not to like about that?

Jack turned to let the water run over his back, groaning with pleasure as his muscles relaxed. There was just nothing like some nice hot water after a long day of work. If there was one thing Jack didn't miss about the 51st century, it was sonic showers.

He walked out still slightly damp, completely naked except for the pocket watch dangling from a chain around his neck – no way was he letting that thing out of his sight – but when he eased the door to their bedroom open, he wasn't surprised to find that the Doctor wasn't awake to enjoy the view.

He'd fallen asleep in the middle of studying again, fully dressed, papers and notes spread all over the bed. He had one hand curled loosely around the newspaper that had fallen open on his chest, and his glasses were still perched on his nose.

Jack shook his head and smiled a little to himself. He'd never seen the Doctor sleep as a Time Lord, but he had to admit that the human version looked adorable like that. Making him a law student hadn't been a bad idea – at least it gave the Doctor's genius mind something to do while they waited out the danger, safely hidden away - but studying for the bar exam for ten hours a day was apparently enough to tire out even a former Time Lord.

He gathered all the papers into a pile on the nightstand, and then eased the Doctor's glasses off his nose and placed them carefully on top. The Doctor made a contented snuffling noise and curled up on his side, tucking his hand under his cheek. He looked very young like this, vulnerable and human. Jack instinctively touched the pocket watch hanging from his neck, just to reassure himself that it was still there. They'd only been here for a couple of weeks, but already the motion had become enough of a habit that he barely noticed doing it anymore.

There was no way to get the Doctor out of his suit jacket without waking him up in this position, so Jack simply curled up against his back, still naked, and fell asleep with his nose buried in the Doctor's hair.


**********


Jack woke up in the nicest possible way – with someone's mouth on his cock. He groaned and arched his back a little, petting the Doctor's soft hair appreciatively. When he finally blinked his eyes open, the Doctor lifted his head and smiled up at him. "Hey there! You could have woken me up when you came home," he said.

"Oh, I don't know, I like waking up like this," Jack said. "Don't feel like you have to stop, by the way."

The Doctor laughed and gave his cock a few more minutes of attention, but then he pulled back and patted Jack's hip. "Turn over, come on!"

Jack grumbled a little but did it, and then shut up right quick when the Doctor spread his legs a little more and licked a long stripe up from his balls. He stroked the rim of Jack's hole with his tongue and then slipped it right in.

"Oh, bloody hell," Jack panted. "Did I ever mention that I love your oral fixation?"

"Oh, once or twice, maybe," the Doctor said smugly.

Jack laughed breathlessly. "Less talking, more doing that," he said, and the Doctor finally went back to it, slipping a finger in and licking around it. Jack moaned. Damn, but he was good at that. It was going to be a shame when they had to go back, and he couldn't just keep the Doctor in bed for half the day anymore.

The Doctor was up to two fingers and a tongue now, and it felt fantastic enough that Jack was pretty sure he could come from just that if it went on for a little longer. But the Doctor was still fully dressed, his baggy brown sweater scratching the back of Jack's legs, and he wanted him out of those clothes.

"Doctor? Get naked and fuck me now, will you?"

"My name's John," the Doctor said, not for the first time and with the same stubbornness he usually insisted on it being "The Doctor. Just the Doctor."

"Everyone needs a nickname," Jack said placidly. And this way he didn't have to worry about slipping up. Jack had spent a couple hundred years having to fit into a couple dozen completely different societies and time periods. If there was one thing he'd learned about not fucking up your cover it was that it helped to make people think you were a little weird right from the start, so that the times when you were accidentally being weird didn't attract as much attention.

The Doctor looked like he wanted to protest some more, or maybe go off on some random, unrelated tangent the way he sometimes did even in the middle of sex, so Jack distracted him by pulling that ridiculous sweater over his head. Strangely enough, this human incarnation of the Doctor liked to dress in a way Jack hadn't ever seen on him, all comfortable, baggy clothes and tweed suits Jack wouldn't have been caught dead in, and he'd lived through a period where tweed actually had been all the rage. It was a relief to get him naked; the clothes were just one more reminder of the Doctor's brand-new humanity, and the fact that this slightly geeky law student wasn't quite the same person as his Doctor, as much as they were the same in most of the ways that really counted.

John was gorgeous without the clothes, long and lean everywhere; he looked more like his real self, too, completely self-assured and at home in his skin. Jack stretched out on his stomach again and smirked at the Doctor over his shoulder. The Doctor grinned back and slid inside at just the right angle, finding a smooth, perfect rhythm immediately.

Jack didn't know if it was body memory or just natural talent, but John was just as amazingly good at that as the Doctor had ever been. Jack groaned and arched into it, then pushed until they were both kneeling up, Jack kneeling on top of the Doctor's thighs, doing most of the work now. He'd done that position with the Doctor a couple times, and they both really liked it, but it was going to be new to John. Jack kind of liked that he got to introduce John to new things now, instead of the other way around.

"Oh, that feels brilliant," John said, wonder in his voice. That just never got old to Jack, the way he appreciated the good things in life. He had his dark sides, could be determined and scary when you crossed him, but he didn't have a jaded or cynical bone in his body. It was a bloody hot combination, if you asked Jack.

"I could keep doing this for hours," the Doctor said happily. "Did you know that there are some species of insects that can mate for up to –"

Then again, sometimes he was just bloody annoying. Jack twisted his hips until the Doctor's voice trailed off into a moan and grinned to himself. Oh yeah, that was more like it.

It didn't take long at all, once the Doctor got his mind back onto the task at hand; a few more thrusts, and then the Doctor curled his long fingers around Jack's cock and brought him off with a couple expert strokes.

Jack let himself collapse onto the bed, pulling the Doctor down with him, his whole body tingling, relaxed and warm. The Doctor changed to a slow, deep rhythm that felt completely amazing, like a slow, intimate caress; keeping the endorphins floating without forcing his tired body to expend any energy. Jack could happily have gone on like this until he recovered enough to get hard again, but he was pretty sure John wouldn't hold out long enough for a second round. He was making low, helpless sounds under his breath that Jack knew were all John's; the Doctor was a lot more self-contained when he came.

He turned his head a little, watching John's pleasure-slack, sweat-slick face out of the corner of his eyes; he wanted to remember this human version of the Doctor, all the little moments of vulnerability he didn't even try to hide, because as far as John knew, he didn't have an enemy in the world. It was as disconcerting as it was endearing.

John came with a choked moan, trembling, buried deep inside Jack. He pulled out and let Jack roll out of the wet spot, but immediately burrowed close again, claiming Jack's shoulder for a pillow and spreading his hand over Jack's chest. Jack quickly pulled the watch out of the way before he could get it into his mind to touch it.

John laughed into his shoulder. "Don't worry, I know how you are about that thing by now. Keeping my paws to myself, see?" He wiggled his long fingers demonstratively, and then let his hand flop down onto Jack's chest again, the fingertips just touching one of his nipples.

"Sorry," Jack said. “It’s not that I don’t trust you. I promise, in just a few more days you can have it all you want.”

"Brilliant," John said, snuggling deeper into Jack's shoulder, and then he let his eyes drift close and started snoring softly.

Jack stroked his hair with the hand John wasn't lying on. He concentrated on looking forward to the way the Doctor would laugh about his human counterpart's stubborn attempts at getting the watch into his hands so he could find out its secret, and didn't think about the fact that in a few days, this John, the human boyfriend who slept trustingly on his shoulder, was going to stop existing forever.



The End