This is horrible... It's practically torture. Rian is essentially coerced into going along with Enzo's demands because Enzo holds all the power and is more than capable of destroying his life. He's giving in out of fear, to the point of letting himself be humiliated through the master-play dynamic and even taking the submissive role a second time without complaint (something the old Rian would have rather choked himself than ever do !)
So the sex scene isn't erotic per se, it's deeply unsettling. It's just another instance of Rian sacrificing his dignity and autonomy to endure a situation he feels trapped in.
And honestly, I waited so long through the hiatus for Season 2, but so far it's really not hitting the mark. Their enemies-to-lovers dynamic had so much potential, but the power imbalance is now so extreme that it ruins the tension. Instead of two strong personalities clashing and creating a compelling push-and-pull between rivals, it feels like one person has all the control while the other is just trying to survive.