It's not really fair, is it? To ask someone to wait for you for five years, or even more. Besides, I'm rather married to the work and my silver lady.
[ That was his reasoning, anyways. It was what he told himself when he didn't say goodbye the morning after, not properly, when he refused to promise to keep in true contact or to say a very certain word. That little word scared him, sent him running - it was simply now he had a much wider array of places to run to.
The sudden change in attitude is a surprise, and while Kirk does not see exactly Spike and Ianto are up to, he assumes that Jack has good reason for this. Just from their conversation, Jack doesn't seem like the sort of man who would do something to upset his lover, and who the hell was he kidding? He did want a kiss. He wanted a lot more, in fact, but without the band he was out of luck.
So he might as well enjoy what was being freely given, shouldn't he?
Kirk pressed back against Jack's lips, fingers cupping the back of his head, sinking into the thick hair. If this was going to be his one kiss from this man, he was going to make the most of it to say the least. He parted his lips, inviting more, his own tongue brushing across Jack's lower lip while he pressed himself flush to the older man, balancing himself by digging his other hand into Jack's shirt. ]