I mean, almost everything on this site has sexual content.
I Love Daddy is my favorite complete game, VN style, great story, 10 different endings to play through all of them interesting and rewarding in their own way... even the darker ones.
Depraved Awakening might be the best VN on this site. It's 8 updates in, lots of sexual content.
Good Girl Gone Bad is fun if you don't mind 2D and female protag, its got more than 10 months worth of updates.
Kingdom of Deception is made in Ren'Py but it's not a traditional VN. Still worth playing, lots of content.
Wicked Choices isn't as far along as these others but its writing is on par with Depraved Awakening and it's a definite favorite for me. I'd suggest you take a look at least.
My Sweet Neighbors is far enough along to be worth the play for you as well.
Given your insistence on H scenes I don't wanna suggest anything that hasn't gotten to the actual sex yet though. There are plenty you might want to watch out for, for instance
Babysitter - great writing and amazing characters, just barely starting to really get sexual with the main love interest, though there are a few teasing scenes leading up to it already and a sex scene with the secretary.
Parental Love - technically I could have put this up above too, sex with your wife and sister have happened. However the daughters, being the ones who you need to work up to with, aren't there yet.
Intimate Relations - Ptolemy, the developer has already got a proven track record of good content with Dreaming of Dana, but he's taken it up a notch by abandoning the pseudo life sim model of dodana and going with a cool vn decision system and multiple protagonists in this game. Really fun to play.