Simon wasn't used to get his thigh squeezed, it wasn't something any of the girls he'd dated had done. They'd expected him to make all the moves, so it was novel and rather exciting to have someone actually making moves on him. The squeeze also encouraged him, because to him it signalled that Chris was okay with some more physical expressions of affection.
"Can't think of anyone else I'd rather be here with right now," Simon turned his head and kissed the warm soft skin of Chris' neck, breathing in the other boy's scent. He followed that kiss up with another, shifting so he could actually embrace Chris properly. He was still being fairly chaste, restraining himself, even though the urge to snog Chris properly was rising. Simon knew his weaknesses, one of them was to get carried away easily when he was excited, and he didn't want to put Chris under pressure when they were just beginning a relationship.