I've noticed this: when it's the first date, and you fuck, the guy holds you much better than he does the next few times. The first date, you're sort of the stand-in for whomever he loved last, before he fully realizes that you're not her, and so you get all this nice residue emotion. I felt cherished, tucked into his belly, like we'd known each other for years and I was his wonderful girl and we both slept great.