[See, now that's something that's actually a little bit scandalous, but he doesn't react with any drama, just a raised eyebrow.]

Shit, same, if you go with kissing instead of bedding, and months instead of years. [His grin is light, to put her at ease.] So like, not the same at all, really.

[This is his way of saying that it's not a big deal, and that he's not going to tell anyone.]