backsack balls black_hooves bodily_fluids breeding_mount cum cum_drip cum_inside cum_pool deep_penetration dripping equine_anus excessive_cum excessive_genital_fluids faceless_character faceless_male feral fur furniture genital_fluids genitals glistening glistening_genitalia gradient_background hair hooves low-angle_view male masturbation motion_blur motion_lines multicolored_body multicolored_fur penetration raised_leg raised_tail rear_view simple_background solo two_tone_body two_tone_fur white_tail shuffur equid equine horse mammal absurd_res hi_res
Generated/Assisted with Stable Diffusion using a mix of models. Made through iterations and hand edits. Upscaled with Gigapixel AI. 

As always I do not use artist's names in prompts or existing art when making images!