Abyssal fish based sapient races: which sex would be associated with the scarlet collar jobs for them?

Okay, it's quite common for writers to use the trope of females of various races being common in sex work (aka scarlet collar) both in fantasy and sci fi. But in RL when it comes to abyssal fish (not to mention abyssal sharks), the males are essentially only there to serve as a cum generator for the females , meaning that a sapient race based on them would typically have the males be associated with scarlet collar jobs since logically, they'll would be more usefull to get a lot of cum.

\*I'm okay with abyssal fish tits on females, though female and male abyssal fish not having tits is a good way to sneak a topless cum bag past the censors....