After a ladies-only session with fingers, tongues and toys, my sweet, lovely, crazy girlfriend surprises me by inviting over one of my bulls. We start a threesome which features extreme deep throat and hard fucking, but it's when she starts fingering me again that the action takes an unexpected twist: although she gives me lots of pleasure as usual, she cannot make me squirt and my bull offers to teach her how to do it properly. The punishment for slow learning? Anal sex, of course!