Why they were doing it at that moment was beyond Derek. He knew the reason it had started, but why they'd continued and what it had escalated into wasn't something he could explain. Not that he needed to. They were both enjoying it and that was all that mattered.

Right up until the kiss was broken at the sound of their sudden audience's encouragement. Derek glanced back toward the front door for a second then focused on Stiles again.

And, with that, he realizing exactly how close he was as he found himself staring right back at Stiles while he pressed him against the car. His own breathing was no better, coming out in harsh breaths.

He almost suggested finding a place more private. Almost. But, when he opened his mouth, a tamer question came out.

"Do you need a ride home?"