Where's the group sex scenes?

Maybe I'm just choosing books poorly, but every RH book I've read lately has only solo scenes, like the harem is just sharing her time. Which is nice, but kinda boring.

But what I actually want are some nasty group sex scenes. I'd be happy with one fucking while the others watch at the very least, but I'd prefer more involvement (maybe some nice dp?)

I usually prefer fantasy/scifi, but I'll read other genres as long as they're written well.

Thanks!