Wow, they're all so hungry for sex. They really can't wait, the energy just goes out of them. With such a hard blowjob you might as well kill your girlfriend, you have to be careful with these guys. In two phalluses at once, that's what I understand guys in the shot, it's a double punch. They were really grinding all her holes, and the rate of grinding didn't drop until the end of the threesome.
Lingerie at the lady is very unusual and erotic, just this alone can really turn you on! It makes her gorgeous body look even more desirable.