By not forcing her like a fucking creep.

>>16686399
This.
Breaking up with her and let her be with other deserved her more than you.

How do I phrase it?

>>16686399

I guess you are right, I just really want her- and another female to insert blunt object into every single orifice on my body.

>>16686390
as of my own experience i think the most girls are curios about lesbian sex themselfes the ony thing my gf mind was that i would like the pussy of her friend more then hers and would enjoy it more then i do with her so we cancelled our threesome we planned togehter a few days before .... it was so depressing. I would say in the best case your gf has a kinky female friend get both drunk and try your luck or you just aks her whether she would like to try it and that you would like to share her experience dont say you want to fuck the other chick otherwise your gf gets jelly

>>16686390
Are you okay with a mfm threesome?

>>16686413

Yeah, I don't care if it is a guy inserting aforementioned objects.

I'm not cool with another dude

>>16686410
Mention the idea as a fantasy, I recommend talking about how awesome it would be if there were two of her. Use toys and incorporate that into your sex life.

Propose it casually, and if she says no, don't press. You both have to be totally on board for a threesome to work. (Take it from me, I actually just had one a couple nights ago, you have to make sure everyone is totally cool or else it just won't work)

>>16686390
By being fair, and saying you will do a mmf after the mff.

>>16686390
also, if you are on the track let her pick the girl, and have her contact

Stop this line of inquiry, OP. The GF clearly doesn't want MFF, and if you keep pestering her, you won't even have MF. All you'll have then is the big M; in other words, you'll be F-ed.

>>16686415
You should suggest just the MMF threesome then. Less jealousy issues, I would think.