skycatcher

hmm. You're not going to be able to convince her. Period. She's got to want it or at least be curious about it.

I agree with getting a drinking game going, playing strip poker, etc... something erotic to get things rolling BUT!!!!! it will be terrible if you do not talk to her before that.

Sit down and ask her what would happen if you two had a 3some with another female and discuss the "game plan". I.e. is it ok for you to stick your dick into another woman or just eat her out. You need to find out what is allowed and what is taboo for your GF BEFORE the 3some happens.

If you have a good idea about what you're allowed to do when that time comes then things will go smoother.

a 3some may break a relationship though so be careful. Yes, it's a great experience for a guy to fullfill his 3some fantasy with 2 women but at what cost?

Think before your penis does.