Rule 34 Dev - 1boy 2013 anthro artist_initials balls ballsack beast biceps blue_eyes blush cum cum_on_hand dragon dragon_tales dripping erection horns humanoid_penis male male_only masturbation necklace nude_male okibearz outside penis quetzal scrotum sitting smooth_penis solo spikes sweat tail testicles yellow_dragon yellow_skin|1496760896