Secret Gay Boyfriend - Please Help!?

For about 6 months now, a football star at my school and I have been secretly meeting to just talk. About a month ago, it went a little farther, we started to kiss and touch each other. Last week, we went all the way, if you know what I mean. I'm not going to go into to many details, but nobody knows. His friends don't know and my friends don't know. He doesn't want to come out with it because he is a star athlete in school and a very popular kid. I'm not as good at sports, but we do have a lot of the same friends. I feel like I'm hiding who I am by not telling at least someone, but I know it would ruin his and my reputation and we would be labeled as "homos" and "fags". What should I do?