I can't think of many examples off the top of my head but I'm pretty sure one of them is bottom Logan's entire bottom route and another is the enemies you can only top as a dude who just don't let you have sex even if you fully seduced them. plus last time I checked the Glory Hole at Ste's Farm keeps the dialog as if you have a dick lol
if I remember anymore I'll edit to add them but I'm pretty sure I'd have to restart to find it again XD