As in, what kinds of sex? Or what kinds of partners? The OP is actually quite well-tagged with what's there so far.
Presently, it's four women, all with the same male character, with only a couple exceptions (you might also include some of the father's dreams/telepathies where he imagines two unknown couples having sex, or is seduced by two as-yet-imaginary twins on a train, but those aren't real so I don't think they count). The four women are the man's wife, robotic servant, niece, and daughter. The wife has vanilla and anal sex with the father. The daughter has actual sex with her boyfriend (not dad) in an early episode, and gets to second/third base (only) with her father in the latest free episode. The niece has imaginary oral sex only so far (although does at one point toy herself while imagining it).
It's hard to avoid spoilers and give a complete rundown, but all of the sex that isn't vanilla husband/wife is based on involuntary compulsion of both partners. All of the participants are being manipulated chemically, electronically, or psychologically. All the daughter sex -- and even one of the scenes with the wife -- involves mind control (not the father's fault) rather than affirmative consent, so if that's not your thing you might steer clear. (In "not my kink" territory, there's a lot of uncharacteristic dirty talk when they're under the influence, too, which is sort of a turnoff because they're all generally quite sweet and loving people.) That said, it's a surprisingly compelling "WTF?" story so far, and the animations and graphics are absolutely amazing (ignoring the dreamscape/telepathy characters, who are caricatures).