Recently my girlfriend of three years and I had a 3way with an ex-boyfriend of hers who was extremely well hung. The sex between them was incredible and I stayed in the background and watched. All three of us walked away satisfied by the experience, which I'm fairly certain will remain a one-time adventure. Last night she told me of her desire to see me suck a guy's cock, preferably a very large cock. I am straight, and while a voyeur, I've never imagined having sex with a guy. She talked of teaching me how to give a blowjob and seeing his cum drip out of my mouth. This surprised me some, although I know of her vivid imagination sexually. This morning before work she talked of finding a total stranger for this experience, a very well hung straight guy. She told me that if I suck his cock for her, she would provide me with quite a show while fucking him. Questions: Is this a fair trade? Anyone else out there have a similiar experience? For the women out there, is it common for women to want to see their mate have sex with a guy?