Found out there are baseline humans in Warhammer who are specifically into pursuing Astartes, like Space Marine chasers. Which then makes you realize there's absolutely a market for Astartes sex work. Which then makes you wonder if any traitor Astartes who refused to fall to Chaos and couldn't cut it as a space pirate ended up selling hole on some planet outside of the Imperium.
"But Astartes don't have sex--", sure yeah they don't have a sex drive, but that presupposes that every sex worker is only having sex they want to have. That ignores the existence of gay-for-pay and asexuals who do full-service sex work because they view it as just another day at the dick sucking factory. Sex work is a job like any other; you're not helping people with the fakakte self-checkout machines at Target for the love of the game, you don't have a passion for it, you do it because you need to pay your bills. Same deal.
So yeah now my headcanon is that there are renegade Astartes on backwater planets posting the Warhammer equivalent of Craigslist ads like "Night Lord needs someone to be the Lord of his Night. 500 credits per hour. Outcall only, no kissing, lights must be off"
