Will I be forgiven??????

Yesterday I rode my grey bike to a school and met a kid who told me I was a follower of the devil because I had dark red hair, I told him I wasn't and then we got into a long argument, finally he told me if took off my clothes he would no longer say I was a follower of satan I never agreed but he than persuaded me into doing it, he was about 12 and I was 19, I did it and he took pictures everyone was in school except me and him, I did it for 45 minutes posing naked while he took photos, I was going to put my clothes back on but he told me I had to have with a pole in which I did and he recorded it for ten minutes and then I left, he told me that he is going to post them on myspace when I left, what should I do? And will I be forgiven?