So many different parameters but only one really matters: the size of the dick 🤣 But seriously, a lonely adventurer whose boyfriend was magically turned into a stallion by a witch, so now they're roaming around the world just the two of them, and he had to learn taking a horse dick to keep making love with his beloved boyfriend, so all the inn keepers feel a bit sorry for him when they hear the noises of rough anal sex with loud human moaning mixed with powerful neighing, they shake their heads and blush, inspired by such deep romantic feelings, and only the adventurer knows there's never been any witch or boyfriend... I'd honestly read a whole novel about this kind of adventures 🤭