Dave is at the garage waiting for his car to be repaired. As he sits down to read his paper out of nowhere four stunning girls appear in what he thinks are fancy dress costumes. Unfortunately for him they are actually aliens and quickly transport him back to their spaceship where they intend to study human reproduction. Dave wakes up tied naked to an operating table and the girls start inspecting his nude body, taking particular interest in his cock. They touch it and examine it and then get a penis pump in order to extract his human seed. They pump away on his penis for several minutes before Dave says they may do better if they use their hands. The alien girls dont understand but start stroking his cock themselves. Dave asks if he can see their tits and they oblige. This soon gets him excited and he spunks all over the place. The aliens are unimpressed though and transport him back down to earth naked. He reappears in the waiting room just as garage receptionist Sasha walks in and sees him there stark naked!