DONT DO IT! He also probably wont know the pain he is causing you physically. It hurts. Alot. I hate to be blunt but if he asked you to have sex online then he doesn't care about hurting you or not. To him, you are probably going to be a conquest to his buddies. This happened to my cousin except for the online thing but he hurt her alot. She told me she wished she had waited. Please dont try to grow up too fast.