It's a way of asserting control over strong emotions that might otherwise become overwhelming.

It's not a coincidence that if you lift up the rock the fundie types live under, all kinds of sexual weirdness comes wriggling out. I'd guess they experience desire as an overpowering threat to their fragile sense of personal dominion and sovereignty.

It's also not a coincidence that the wackier fundies get, the more this kind of thing happens, until everyone is living in Gilead - which isn't just a repressed place, it's also a very kinky one.

What, you have gun control now?

En un viejo país ineficiente, algo así como España entre dos guerras civiles, poseer una casa y poca hacienda y memoria ninguna. -- Gil de Biedma