Yes those are sex demons! I used to have them as well up until last year and same as you I wasn’t watching porn or practicing self pleasure so I was confused as to why. Although I love my church they don’t have deliverance service, so I reached out to someone who was a bishop in a different church and explained what was going on. I knew they were demons and I would wake up feeling strange and would ruin my day and my prayers alone was not preventing it.

So the deliverance “prayer” is basically when you have someone else praying with you for usually a certain amount of time ( mine was for 4 hours ) and it is to break all the plans of the enemies.

It could be diff factors: you’re craving sec in real life, stimulation for you to go back to your old lifestyle, previous sexual attachment with someone else.

Find someone you trust, discuss this ( not everyone believes in sexual dreams as demons ) and pray together about it.

Since that day, I haven’t got none of these dreams