What about more situations with horses?
I think it would be interesting to have a penality in a quest (maybe with those traveler merchants, or against the black market, idk) where Lona gets restrained in pillory to get used as a fucktoy by the horses.
Or maybe tie Lona arround a horse's cock and parade her through the town, you could go even further and tie her legs (by her knees or shins) on a carriage or a wagon, so the transport's weight holds her while the horse push forward.