Rule 34 Dev - 1boy 2021 absurd_res anthro ass backsack bald balls ballsack barefoot beefy biceps big_butt big_muscles big_penis cartoony character_royce closed_eyes comic cum cumshot digital_drawing_(artwork) digital_media_(artwork) ejaculation english_text erection expansion facial_hair feet fingers flexing flexing_muscle genital_expansion genitals growth hi_res humanoid_genitalia humanoid_penis kyrgz lactating lactation male male_lactation male_nipples male_only mammal marine masturbation membrane_(anatomy) milk moan muscle_growth musclegut muscles muscular_anthro muscular_male mustache nude_male obese orgasm pecs penile penile_masturbation penis pinniped scrotum simple_background smile solo swinging_balls teeth testicles text transformation tusks walrus webbed_feet webbed_hands|5518405640