Andrew made the best noises! Jack was definitely wondering why they hadn't done this before, how he had been so clueless as to notice this. His tongue curled around that nipple again and licked over it, teasing it to a hard peak and then nipping at it with his teeth, tugging lightly, almost playfully - a wicked sort of play.
He idly wondered if Andrew had ever done anything like this before. Certainly not that he had any knowledge about. Andrew had just never seemed interested in dating (and well, now Jack understood why).