In part Jim was sure that Bones was a very good kisser, much like Jim himself was, but he was also aware that there were layers and aspects to their relationship that Jim had never really had with anyone else. Even if it was just a physical thing, Bones still would have been his best friend, which in itself meant a lot of deep feelings of affection and love— no matter what kind.

But it was more than just physical too. Jim knew that, even if neither of them had brought that up yet. They just kept pushing at that line and seeing how far they could go, apparently, and so far neither of them had complained. Far from it, actually.

A small part of Jim wondered, though. Bones was a little more traditional and conventional than Jim was when it came to this sort of thing. Maybe he would prefer defining the relationship, but then Jim lacked the experience to know how to even bring that up, so he just... kept putting off that talk. Or just waiting for Bones to mention it himself.

But then knowing Bones, Jim should know that the doctor would worry too much about imposing or forcing Jim into anything he didn't want.

Humming in pleasant surprise at the bite, Jim curled his lips into a smile, returning the softer kiss as tenderly as he could manage. His hand slid down Bones's neck, thumb drawing along his jaw and down his throat, slipping just barely past the collar of his shirt and swiping across the skin there. This time around he was the one breaking the kiss, nipping playfully at Bones's nose.

"So how's that for dessert? Had enough yet?"