Rule 34 Dev - anthro balls belly blue_eyes blush butt duo erection full_nelson full_nelson_(legs_held) genitals humanoid_genitalia humanoid_penis male male/male penis slightly_chubby vein veiny_penis yamausagi0619 mario_bros nintendo boom-boom boom-boom_(character) boom_boom dry_bones hammer_bro koopa koopa_troopa scalie hi_res|18335060485