I believe most scripted events only available if you played as female rather than male one. It's clear that the developer wanted to make completely different experience as either gender. If female one is more focused on story and exhibition events, the male one is more focused on sex, fucking as many girls(and guys if he is gay or bisexual) as possible.
This is a minor complain but I wish the developer will add more events with roommate's girlfriend when playing as male as much as roommate's boyfriend when playing as female.