Agree 100%. Wife is very conservative, you'd never know we do anything like this. We have a guy we see regularly. She's a whole different person when he's with us. We've done this quite a few times with him. It's SO EXCITING watching them together. We take turns doing her for a while, he'll tell her to get on her back, we all know what's going on. He's got a big dick, 8+ easy. He mounts up, slides in, she stretches her legs straight down, he goes to town pumping hard and fast, in about a minute she starts to cum, her whole body gets stiff, she pushes her pussy up to meet his pumps and she grunts and cums HARD, that gets him off. They lay there for a minute kissing till he pulls out. My dick is ROCK HARD. I slide into her and she fucks me so different but so hot, we go slow and easy, we all can hear the squish, squishy sounds of her sloppy wet pussy as I pump her, I cum pretty quick. Incredibly exciting for all of us.