"EEEEEEEKKKKKKK!" You squeal as the Minotaur's long cock is shoved so deep into your bouwls that you swear it had to have ruptured something important.
And then your in for an even bigger suprize as suddenly the cock takes on a life of it's own as it begins to move about your bouwls like some sort of worm.
Later...
The Minotaur, having completly satisfied his lust, at your expence, begins to remove his cock from deep within your anus. Or he tries to any way, because no matter how hard he pulls he just can't seem to get his cock out of you. All that wiggling around it did, must have gotten it stuck.
The Minotaur then grunts something that sounds strangly like "Ow Shit!"