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animal_humanoid anthro balls big_tail blush bottomless bottomless_male choclattemilk clothed clothing comparing comparing_penis curiosity curious domestic_ferret duo embarrassed erection exposed foreskin genital_exploration genitals hi_res horn humanoid humanoid_genitalia humanoid_penis line_art looking_at_another looking_at_genitalia looking_at_partner looking_at_penis male male/male mammal mostly_nude mustelid musteline nude one_eye_closed partially_clothed partially_retracted_foreskin penis penis_size_difference presenting presenting_genitalia presenting_penis sexual_exploration show_me_yours standing sweater tail topwear true_musteline weasel wink