Rule 34 Dev - 2017 2boys 3d 5_fingers abs anthro anthro_on_anthro areola back_muscles backwards_baseball_cap baseball_cap beard biceps big_muscles biped black_border border bovine braford cattle comic detailed detailed_background duo equine facial_hair furry gay greyscale hand_on_penis handjob hat horn horse huge_muscles humanoid_hands inside interspecies licking male male_only mammal manly monochrome mostly_nude motion_lines muscular muscular_male nipples nude obliques open_mouth oral pecs penis penis_lick quads serratus sex snout soft_shading speech_bubble teeth testicles text thought_bubble tongue tongue_out triceps|2592838168