Rating is for v0.3.1a
Currently a mess of a game, but it does have some potential.
The beginning of the game is excessively difficult to manage, and appears to be significantly bugged. You get horny, go to the hospital, then go home and talk to you (step)mom, and there is a conversation about your sister "helping" you with your problem, but then there are no options to do that. The only two ways to lower horny at the beginning are to either go to the hospital and redo the events with your mom (another possible bug) or to jerk off at night, but the night option barely helps. Other than that, it's just about getting your corruption up to get more events. There's stuff to buy, but most of it appears to be worthless.
I want to like the interface, but without context it just makes the game more confusing. Like it tells you the persons arousal, but it doesn't tell you what arousal does (outside of increasing corruption at night).
The story is so glitchy it doesn't make any sense. Pretty much every story event is bugged in some way.
All in All, it needs some serous tweaking, but after that, there is some real potential here for a decent game.
Update for 0.9.1aDLC
It's actually gotten a lot better. Most of the glitches have been fixed and the beginning feels a lot more manageable now. Main issue is grinding for money doesn't feel balanced at all. Most of the characters will be fully corrupted before you can even start the story or buy anything. Other than that, there is very little in the terms of story going on here. The game is now about grinding for money while watching the plethora of sex scenes which gets really, really grindy.