Sherlock unsnapped his belt, but he didn't get out of the car. Instead, his eyes got a bit wider and he looked over to John, as if something rather serious had just happened. But, instead of beginning to talk, he lunged across the space between them, taking a tight hold of John's face and pressing their lips rather forcefully together.

"I'm sorry," he apologized almost right away, closing his eyes and swallowing hard. "It's like I... I feel like I have to do this." Fancy way of saying hormones in his brain were sort of... launching him along this path. But he didn't know that. "And you already said you liked me..." He trailed off, voice cracking, before going at it again, determination pushing him forward.