Guy not leaving me alone

This guy added me on Snapchat a few days ago and we started talking. He’s a really popular guy and knows a lot of different people so I knew not to mess with him or anything. It’s been going ok until he started asking for “mirror selfie’s” and coming to some of his parties so I could have my first kiss (btw I’m Muslim so it’s against my religion to kiss random people and my parents would beat me so hard lol) he keeps asking and idk what to do because if I block ik he will talk about me to his friends but I also don’t want to give in. I’ve rejected him like 7 times already and idk what else to do