FURVERT!

2024 abs age_difference anthro anthro_on_anthro areola asriel_dreemurr balls bandage barbell_piercing belly biceps big_balls big_muscles big_penis body_hair boss_monster_(undertale)bovid bowser caprine chest_hair child_swap crossover dialogue door duo ear_piercing english_text erection eyebrows facial_hair father_swap foreskin genitals goat hair hand_behind_head horn huge_balls huge_muscles huge_penis humanoid_genitalia humanoid_penis kolemus koopa long_penis male male/male mammal mario_bros musclegut muscular muscular_anthro muscular_male narrowed_eyes navel nintendo nipple_dip nipple_piercing nipples non-mammal_balls non-mammal_nipples nude open_mouth open_smile parent_swap pecs penis piercing pubes relative_swap scales scalie shell sideburns simple_background size_difference smile son_swap spiked_shell spiked_tail spikes spikes_(anatomy)standing tail text thick_penis thick_thighs undertale undertale_(series)vein veiny_penis white_background