I have been in a relation with a girl from 1.5 year. initially my sex life was quite good and interesting. But as of now she has lost her interest and our sex sessions wil b boring. What might be the reason? The thing is she was in a relation with 3 guys before me. Nearly 8 months with first guy, 3 months each wit other two. I was a virgin wen I got her and v quite loved each other. But now I feel she has lost interest. Is it good to have sex with outsider or not? Im literally attached to her, as she is the first one in my life. I feel like she had enof sex with those guys n I do not always get satisfied. I feel to have sex with others. Help me.