Stuck in sims medieval pleaaaase help!!!?

Okay, so i'm doing the "heir to the throne" quest in sims medieval, and i've gotten to the point where my monarch is ready to woohoo with her partner, who she's married to and everything, but the problem is, i have the woohoo option but it says there isn't a bed big enough any place nearby, and i can't get him to come to my palace cuz there's no "invite over" option, and he's not on the list in my messenger post, so how do i do this?? he just stays in the outdoors all the time...what should i do>> please help!!!