Or the woman is just h0rny af and wants to feel the strength of such a load flowing in her mouth. not that ive ever done it with a horse but have fantasized about it. its not so much vanity as just love of the feeling, taste, and connection. the ‘i can do that’ feeling comes later

The turn on isn’t the horse. The turn on is a girl who is so cock hungry, so cum thirsty that she see’s something like a horse as a challenge to her ego, her vanity, her lust as an object of pure male phallic cock worship. 

Girls see these huge cocks & they will be goddamned if they can’t get them hard & make them cum. They are driven to conquer such cocks by their vanity, especially knowing others are watching. What colossal vanity! They’re not just whores, they’re attention whores too. “Look at me! Look at what I can do! I did that!”

It’s like a mountain that dares not to be climbed. Woe be to the mountain. Woe be to that cock. That chick will be hellbent on conquering it & bending it to her will.

THAT is the turn on.