Others Wolf's Dungeon [v240923] [Eluku99]

[Guess_Who]

PS: correction: you're right, you do need the cum bar,
but the ending is still lust dependent. sleep to deplete the food and lust bar and go into the boss. when you get almost full food bar start breaking out, as long as you stop touching your keyboard the boss will eventually game over you and give you one of the endings.
although harder by faffing about in the jail im sure you can increase your lust to the max and by doing basically the same thing as above, youll get the other ending.

I also tested it again, yes it seems like it depends on the lust bar. I didn't take it into consideration since her futa is always erected in this stage and the cat doesn't drain any HP with her attacks. I was just letting myself get caught and didn't touch the keyboard so the lust bar couldn't fill up.