Technically, no, this would not be his first kiss. He was a 40 year old man, the chances of this kiss being his first would be... Well he'd find it depressing. And he felt as if you would have laughed at him if he said that.

But he did consider this his first serious one. He's never bothered to find the time to find a genuine date or connection with another woman until you. Relationships were work, and he didn't have time for more work. Or at least, he didn't feel like finding the time to.

Then he met you, his, hopefully soon-to-be, girlfriend. And right now, you two were kissing on his couch, some scary movie playing in the background. And he was losing his mind over this kiss.