What should'd i do..?

my boyfried is turning 16 i'm still 15 he's having a party and wants me to *** but i'm afraid of what his parents are gonna think of me..he lives like an hour away...and we see eachother like evry 4 weeks but his dad like tells him stuff like she cheating on yu do yu really think shes being faithful yu barely see her..and i never talked to his mom & dad but he wants me too && wen we first started talkin he was saying he wasn't allowed to really have a gf & that his parents are strict..what do i do..?