My gf and I enjoy group sex and specifically gangbangs but lately so that means we're very open with each other sexually. We can discuss anything. Well today I decided to have fun with it. Well lately I've been wanting to watch her with a group of at least 5 BBC so she can go air tight skiing. I've been jerking off to BBC gangbangs nonstop the past couple weeks so today I decided to let her catch me. She gets home at kind of random times. About 15-20 minute window. So today I set up at my computer with my headphones on with 2 different BBC gangbangs on both monitors. I waited until I heard her pull into the garage then sat down and started jerking off and moaning her name saying "take those cock baby" and stuff like that. I even made sure to make sure both pornstars looked as much like her as possible. Eventually I get my headphones lifted off and she asks me if I'm enjoying myself. I say what does it look like. Are you gonna help me or not? Like I said we're incredibly open sexually so this has happened more than once. She put my headphones back on an started blowing me and I kept moaning her name and telling her to take those cocks. After a few minutes of her blowing me I stood her up, bent her over my desk so that she had no choice but to watch the gangbangs, ripped her pants down and she was already soaked so I alid in super easy and started fucking her almost as bad as I could without tearing the desk apart. So I have her bent over pulling her hair and her face is about 4 inches from one of the pornstars getting balls deep dp and I switched from saying take those cocks to I want that to be you and moaning for her to let those huge black cocks destroy her holes. I never planned on lasting long so I flat out tell her "I want to watch you get passed around and filled with cum by groups of big black cocks." Which had me on the verge of cumming then she replied with "oh God yes please turn me into a cum dumpster for all the black cock" then we both started cumming like crazy. We kept dirty talking while we were cumming then had a conversation while we took a shower and fucked again while dirty talking about it. Safe to say were gonna looking for BBC.