"Hardly the strangest thing to have happened here," Ianto replies, wrapping his arms around his back as Jack pulls him closer, adding, "And for the record, I like the older model." Not that he's currently complaining about the younger one.
This close together he can't resist leaning in the last few inches to kiss him, feeling an odd thrill of excited butterflies in his stomach as he does. It's like kissing someone new for the first time even though it's Jack and he can't help but feel a little excited.