Rule 34 Dev - 2boys after_transformation age_difference anthro anthro_only balls big_balls big_penis black_body black_fur blush bodily_fluids canid canine changed_(video_game) dagasi dripping drooling duo erection foreskin frottage fur genital_fluids genitals goo_creature humanoid_genitalia humanoid_penis imminent_sex lin_(changed) looking_at_genitalia looking_at_penis male male/male male_only mammal mask partially_retracted_foreskin penis penis_size_difference precum precum_drip puro_(changed) retracted_foreskin saliva sex shaking size_difference small_but_hung smaller_male solo_focus spiral_eyes sweat tears thigh_sex trembling urethra vein veiny_penis wearing_mask yaoi|1032748