If you've ever been with someone like this, you know the problem right away. Having sex with a person like this is like going to the best burger joint in town only to lick mustard off of a napkin. These people don't like sex, don't want sex, or don't know how to sex, and all of those are valid, but don't have sex if that's how you feel!
In so many words, the dead fish is precisely what you think -- a person who lies there and takes your nefarious ministrations with no enthusiasm, effort, or participation. They're basically a sex doll that maintains body temperature. If you've never experienced this, count yourself lucky, because you've avoided the existential fear of basically knowing what necrophilia is like.
Isabell Schatz/iStock/Getty Images
At least vampires bite back.
There's nothing wrong with not wanting to have sex, but if that's the case you should probably do you and your partner a favor by not having sex. When you engage in the act and then pull off your best impression of current-day Lenin, it's disheartening for the person who probably has some vested interest in getting you to at least grunt once.