She'd been gone for ages now; maybe he ought to try and find her. The Doctor made a valiant effort to stand up and do exactly that, but failed miserably.
On second thoughts, maybe he'd just stay sitting on this nice, solid, motionless wall for a bit longer. He was sure she'd be ok.
He was just trying to remember what he'd done with his beer glass, when he heard giggling from the nearby door of the community centre. His attempts to ignore it failed as it grew in volume; he turned to see Rose being pushed outside by a gaggle of very drunk women.
"There you are – I was just-" He was silenced by Rose staggering up to him and putting her finger on his lips. At least, she tried to – it actually ended up on his chin.
In a badly disguised stage whisper, she said, "Shh. S'truth or dare. They say, say've got to kiss you t'prove it."
He was just about to ask what exactly she was proving, when the rest of what she had said processed. But by that time, her lips were firmly pressed against his. The giggling from the door increased, but neither Rose nor the Doctor noticed.
A few moments – far too few, in the Doctor's opinion – later, Rose broke away.
"There," she said to the doorway, "told you." Turning back to the Doctor, she began to say something before she collapsed against the wall.
"I think it's time we left," He said, managing to haul himself up before taking Rose's hand, "come on." He didn't care how it looked; they needed to get back whilst they still could.
The two of them slowly made their way to the TARDIS, which they'd left at the back of the car park. They just about made it inside without falling over.
Neither of them was in a fit state to do much more than lurch into the control room and collapse on the floor after they'd got that far – and so that was where they found themselves the next morning; Rose lying with her head on the Doctor's chest, him sprawled against the main console, both fully clothed.
"Er – Rose?" he asked, tentatively, "do you remember what happened last night?" In his head, he was fervently hoping she didn't. It was a little fuzzy, but he was certain he recalled rather more enthusiasm and even (he winced) more tongues involved than had been necessary. If she thought he'd been taking advantage of her…
"Um. No. I don't think I do." Rose said, her cheeks flushing as she remembered how little encouragement she'd needed to go up and kiss him.
"Still, must have been a great night for us to wake up in this state, eh?" The Doctor said brightly.
"If you say so. Personally, I stink of fags and booze – and I ache – I'm off for a shower." With that, she got up, stretched and sauntered off in the direction of a bathroom.
The Doctor watched her go for a minute, smiling, before getting up himself.