What...what? Why? What the hell would the guy do with semen? It stops being viable in like an hour, doesn't it? Also, not that I have ever been in this situation, but I thought that fear or otherwise nonsexual excitement made it impossible to get an erection or ejaculate.
That's one F*cked up story!! The victim willingly goes into this guy's house looking for "food and work," refuses to have sex with the man's wife, and is then violently pleasured by the man....what a mess. It sounds like a Quentin Tarentino movie or something.