I can't seem to find it anywhere but I'm sure it came from this site. Male protagonist, you play as a guy in the employ of a corpo that's field testing sex bots and you need to break them in and put them through the paces. First one was busty with a half shaved head I think, but you could end up with a harem. There were even body mod options like pregnancy and muscle girl for different models you could unlock via the labs terminal.