I have been with my bf for 6 months I am 17, I was a virgin until 2 months ago, he is in his early 20's, everything was wonderful but a couple of weeks ago it all changed, we had been out on a sat nite we were drunk and having sex at his house he was fucking me from behind when the doorbell rang, he was gone for ages and when he came back I was asleep, he started licking me and was soon fucking me again he had me face down doing me from behind, he fucked me hard and came, he got off and suddenly I felt him enter me again all hard it felt odd and I tried to turn round but he held my held down and pumped me hard I heard giggling and realised we were not alone, to cut a 2 hour story short it was his mates that were taking turns on me, I was spit roasted, dp, my first anal experience was 2 of his mates he kept kissing me telling me I was awesome, him and 4 mates fucked me for hours, since then I've done it 3 times with all of them, now he's calling me a slut and we argue I thought he loved me, but he's turned me into a slut who loves fucking he gets me to go out with no knickers and does rude stuff I don't know what's going on 1 minute he is lovely then he is horrible