4 arms anthro background character e621 english text equid equine expansion flexing genital expansion genitals half-erect hi res hyper male mammal medical mental transformation multi arm multi limb muscular muscular anthro muscular male nude penis penis expansion piercing science scientific experiment slow transformation solo stripes text transformation uniformvixen zebra | #187766


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Edit Tags Separate tags with spaces (help)	4_arms anthro background_character e621 english_text equid equine expansion flexing genital_expansion genitals half-erect hi_res hyper male mammal medical mental_transformation multi_arm multi_limb muscular muscular_anthro muscular_male nude penis penis_expansion piercing science scientific_experiment slow_transformation solo stripes text transformation uniformvixen zebra Related tags \| Related artists \| Related characters \| Related copyrights \| Related circles \| Find artists