Actually, as someone who was a virgin until 27, that fact may have been his turn on. Sadly, there are guys whose kink is being "the first." My experience is the guys with that kink simply cannot believe the virgin doesn't want to stop being a virgin. In fact, my first was someone who coerced until I felt compelled to acquiesce. Guys like that think if they coerce you, make you feel you have no choice, that it's consent.

As I taught my son, "Coercion is not consent."