beta
Mix and match any monster and fetish you like. MC was the last person left at the unhatched dragon prince's castle so he went insane and became obsessed over making sex toys. The dragon somehow heard MC talk about the toys so when he hatches, he's excited to try them all on MC. Somehow various monster types stumble into the castle so long story short they all end up fucking MC for reasons.
MC is the demon king fated to destroy the world but the world progressed way beyond middle ages and nobody gives a shit anymore. The demon king is broke as hell because he's not even allowed to raid cities in fear of getting arrested. He decides to be a sex worker for money and everyone he's destined to fight is lining up the door to fuck him.
Pretty much every fetish you can think of, it's in the manga
MRM-esque porn manga
MC is a magical slut who's job is to have sex with monsters and make them him slaves. The kingdom was mistreating them so MC straight up took over the kingdom with his boy toys.
I don't remember the story that much but I think MC had two model best friends who were down bad for him
MC is a classic hero going from adventure to adventure but he's so unlucky he keeps getting captured and fucked by every single monster types.
In the Castle: the Dragon's Erotic Education