Help me!!!

So this guy I’ve been talking to for a while told his friend he wanted to have sex with me (although he’s a Virgin). He also told me that his parents are going away this weekend so he’ll have the house to himself and he invited me over, I feel like it I go he’ll want to have sex. I’ve had sex before and it doesn’t scare me or anything it’s just everything that comes after that does. We live in a small town and he’s a guy so he’ll probably tell his friends who will tell everyone. I just don’t want everyone to know but I do want to have sex with him. He’s a senior in highschool and I’m a junior. What should I do??