Yes, this one does involve sex, though nothing to get too explicit. Hopefully updated daily through the next 11 days.
Eleven Times the Doctor Walked in on Amy and Rory (and the One Time They Walked in on Him)
1 - The first time he had walked in on Amy and Rory having sex had been by complete accident. He hadn't knocked on their door, just barged his way in and had caught the two of them going at it like...well, like a pair of humans.
He had shouted out an "Oops, sorry!" walked back out and closed the door behind him, glad at least that at the time they had been under the covers of their bed so he hadn't actually seen anything other than...well, their heads, shoulders and the general movements they had been making, which had been a big enough giveaway to what they were doing.
It had been the first time since he had acquired his TARDIS that he had actually walked in on his companions having sex. He had thought, rather naively if he was being truthful to himself, that the TARDIS had somehow managed to stop his companions from doing so inside her. That she didn't like the act of sex being done around her.
It seemed like she had no trouble at all when it came to Amy and Rory, because, he was soon to find out, they did it quite regularly and in more than one spot.
He sighed and went to the console room to wait for them to be done so they could go somewhere.
He had gotten bored of sitting down and waiting for them to wake up. He hadn't thought that they might need time to do other things.
Well, that was the last time he barged into their door without knocking first.