Rule 34 Dev - 1boy 2d abs ai_generated anthro anthro_male anthro_only armpit_hair balls bara biceps big_balls big_penis caprine deltarune furry furry_male furry_only gay horny humanoid humanoid_male humanoid_only ilovementits male male_only mammal mammal_humanoid muscular nipples pecs penis pubic_hair ralsei solo thighs undertale_(series) yaoi|11604352728