Does he want to have sex with me?

I'm currently a freshman in high school and there's this guy in my school who's really weird and awkward around me but he's SOO nice and humble. Now it's pretty obvious that he likes me; he acts super shy around me and never does that with why other girls. He snap chatted me earlier today and said "Would you like to do hot crazy sex". He then told me that it was a joke but, joke or not, WHY WOULD HE SAY THAT? He was obviously thinking about having sex with me even if it was a joke or not. Opinionsss?