You can't trust blondes. She's willing to give her brother a new haircut between her legs just to be appreciated. I understand him - it is impossible to break away from such a body, even by force of will. And then we wonder why some chicks don't give it up on the first date. It's because they have brothers who string them up before they do!
I think every guy has ever dreamed of having sex with two girls at once (or even more). Here, all dreams are realized to the fullest extent - two pretty girlfriends doing everything they need to do.