Oh no, I’m sorry that the thing I wrote might has given the wrong impression without context.
It’s actually the polar opposite: The demons in Devilman are all about animal drives, so they’re like 100000x amplified about violence and sex and both. That’s why I jokingly wrote “it must be awkward if you actually are an asexual demon” because most of them (those you see on screen)… are not.
And I will highly recommend you not watch the series if you feel uncomfortable seeing sexual scenes because there will be a lots of very blatant sexual cut scenes.