MY boyfriend and his flatmate got me and the other guy’s girlfriend to act out lesbian porn stuff for them when we were all very drunk. I know I’m straight but now I’m feeling I’d like to do it again.

I am 19. I have been with my boyfriend for over a year. He is 20, gorgeous and our sex life is brilliant but he can be quite controlling.

We went out as a foursome to celebrate my boyfriend’s birthday. We’d booked a taxi home so didn’t hold back and had lots of shots. We had a great laugh then, when we got back to the boys’ flat, they put on some music and we had more drinks.

I got up and started doing some sexy dancing to a track I really like and the other guy’s girlfriend joined in. The boys sat and watched and said we were really great. They urged us to do a striptease and then some more stuff together – things they’d seen girls do in porn videos online.

Of course we made out we were just doing it to please the men but all I keep remembering now is how nice it felt. She knew just how to touch me to make me feel good – better than my boyfriend does in fact.

I love my boyfriend but ever since I can’t stop thinking about that night and feeling like I want to do it again. I don’t want to have these thoughts and they are really doing my head in, yet at the same time I like them. There are no other girls I find attractive, but when I see her and her boyfriend together I just see a beautiful sexy girl and it turns me on. What’s going on?

DEIDRE SAYS

Women’s sexuality is more complex than men’s and it’s not surprising that another girl had a clearer idea than your boyfriend does just what touch feels good where. But you’re not in love with that girl –just naturally wanting more of that extra-arousing sex.

If you want your relationship to last, draw a line and be clear you’re not going to get involved in sex play with another girl like that again. Sex should be a special part of your intimate relationship with your partner, not a performance for him and his mates.

But help your boyfriend discover what touches are especially arousing for you and maybe use sexy talk to heighten your mutual please. I’m sending my leaflet Bisexual Issues? and How To Have Great Sex.