I love the concept...
*BUT*
...repetitive even by beat-em-up standards.
Yeah, I felt like this was the issue across the board.
In terms of combat, you specialize one variation of one attack, and then if you do anything else it feels like you are nerfing your damage for no reason. There definitely needs to be more incentive to vary combos, counter, figure out weaknesses, learn timing, etc.
Every stage is visually unique but functionally almost identical...about 6 batches of 6 enemies before the last batch which has a boss. The enemies are also visually unique but functionally almost identical...occasionally using normal melee attacks or the rare special move.
But worse still, the sex is very repetitive. It takes like a minute to "finish" an ordinary enemy with a sex move which feels like 4x or 5x slower than the pace it should have. Save the long bang sessions for bosses. Once you are in the sex move, you mash to get your sub/dom meter where your goal is...and that's it. Boring. You set your favorite moves, and those are the only ones you see until you manually change them...and nothing like "random missionary" or "random oral" to keep things fresh.
And then there's the bugs. The game fails to load properly and/or crashes at the end of a stage about 20% of the time for me.