FURVERT!

absurd_res anthro barely_contained barely_contained_penis big_muscles big_penis bodily_fluids expansion genital_expansion genital_fluids genitals growth growth_lines hi_res huge_muscles hyper hyper_muscles makowolf1 male mammal muscle_growth muscular muscular_male mustelid otter penis penis_expansion precum simple_background solo tail uneven_growth vein veiny_muscles veiny_penis