My gay friend wants to experiment with me...?

[Laura]

Alright so I have this friend that I've know for 13 years now (I'm 17 btw) and he's gay. He is in fact my best friend. So the problem is I have a boyfriend and I tell him everything so that there's no lies or secrets between us. Just recently like about 5-7 days ago my best friend told me that he wanted to experiment being with a girl and trying different things. He told me that he's asking me because we've known each other for a while and he wants someone he's comfortable with. Now I have no problem with this only because he's never been with a girl and he's never done anything with one and knowing that were so close it honestly doesn't bother me. BUT the problem is my boyfriend is very controlling and he's 19. I am a bit worried and afraid to tell him about this because I don't know how he's gonna react. I honestly have no idea what to do and I know this is a stupid question but do you think you guys can help me out a bit on what you think I should do I'd love to have different opinions.