My girlfriend with another sex partner

I would love to have another man f*** my girlfriend then I would eat his c** out of her pussy

cool

I feel the same way, with my girl. except I don't mind other guys as long as they aren't fucking her. Idk... It's like I can wash sex off in the shower. It's a bit more invasive for her.

Well Dude, I must warn you that although it is nice to fantasize about such things, the real deal CAN be a real passion killer, depending how you are "wired" so to speak.

I for one would refrain from going down that road if you are really into your Girlfriend as it may cause a break-up between you.

However if you are both adventurous, go for it and broaden your horizons...remember, You Have Been Warned of the implications!

That's normal, I always watch my wife having sex with other men while I'm watching and there's nothing turns me on more than this.

I am a straight guy and encourage my bi gf to have sex with other girls, I even recorded a video of my gf having sex with one of her lesbian friends, and it really turns me on. But never will I allow her to have sex with a guy other than me. I am the only man in her life, and she has no problem with it...

Aren't trannies into gay sex? Well, maybe not gay sex since they fancy themselves women, but you know, sex with guys.
Seems like you've chosen a very difficult fantasy to fulfill.

Whatever floats your boat...