Does anyone think it wrong to have sex with a friend you've known for years. I have had sex with a couple of friends before and although they say it was great, they also said they could never do it again because it would ruin my friendship with all them. Now this is after several times of some seriously good fuckin'. For some reason it is now complicated, a mistake, or a sin. Even though we have remained friends and pretty tight friends at that. Is this whole idea really that bad? By the way they have fucked other friends more than once and their reasoning is they don't care as much for them as much as they do me. What's everyones opinion on friends with benefits.