Isn't Au Pair innocence the one where the "Dad is a dick" trope of a father cucks you with the girl you're into, but played by you, making you cuck yourself?
More to the point
My *Sweet Neighbors and Dating My Daughter use exactly the same mechanics as
Babysitter - This one has excellent writing, in fact it's writer is the guy I go to for advice. In it you play as the uncle to a niece who's moved in with you in the city in order to find work and try to start a career as a journalist. Over time you develop feelings for one another, and depending on how you play the game, those feelings can be more lust based or romance based. As well as the niece there are a few other ancillary characters to be involved with, including your secretary and your niece's best friend. It's characters are consistent and well written, I definitely suggest it.
Parental Love - This one, I like to say, is everything that DmD should be. In it you play as a father separated from his daughters for 16 years due to his battle with addiction and putting his life back together. However this has apparently happened and the game starts with you, the father, meeting your wife, their mother at a bar to talk things over in person. She's eager to give you a chance to redeem yourself, as, in spite of your problems, it seems she still loved you. So you navigate this scene well and are invited to come home with her. On the way home you have to stop by the gym to pick up your eldest daughter. Your first sight of her in 16 years is of her perfect ass as she bends over in some part of her routine, something the game even allows you to comment on. You make it home, get to know her a bit more, as well as your younger daughter, before going to bed with your wife. It doesn't take long for events to unfold where your eldest daughter, with daddy issues of course, starts to see you as a man, and you seeing her as a woman, begin things. But that's not all, you have your wife, another daughter, her friend, and more that I won't spoil, since the game kinda treats it as a surprise.
You may also enjoy
Sisterly Lust - This one you play as a brother/son, but its a VN in like the above, somewhat, in which you have 3 sexy sisters, and your mother to romance/seduce as well as plenty of ancillary characters. Each sister is different but you spend time with them and get to know them all in their own right, and discovering/exploring your mother's sexy secrets make for quite the adventure. The game has a very fun premise, constantly delivers sexual content to keep you coming back for more. It's one I always look forward to, fun to play each release and each of the characters are great.
I Love Daddy - When I first started playing adult games I ran into a lot with a lot of content, but horrible writing. So when I eventually landed on this one it was like a breath of fresh air. You play as the daughter for a change in this title, seducing her titular daddy. Depending on how you play this game can play out as a typical incest game with endings that detail consequences of that life, or, doing certain things, explore an awesome and completely unexpected backstory and future for your characters. To now, even though I've played dozens of games since it makes this list because I like it as much if not more than all of these.
