I'd let my wife get fucked too. Just to make sure she's a bitch. Any chick's just waiting for that. That blonde doesn't mind being fucked all over. That dog with the rubber band ain't her husband, that's for sure. And the hubby, as the owner of the chick, fucks her without too much precaution.
There is no need to excite single girlfriends, otherwise it happens thick and often, because in the end they are also human beings and also want sex, this one is not confused, went and did what he wanted.