Rule 34 Dev - anthro balls blowing blush brainsister closed_eyes cum cumshot dialogue duo ejaculation erection foreskin frottage fur half-closed_eyes hand_on_penis handjob heart humanoid_penis male mammal monochrome mouse one_eye_closed open_mouth orgasm pawpads penis pinky pinky_and_the_brain precum rodent sex sitting size_difference slightly_chubby sound_effects sweat the_brain thick_thighs thigh_sex warner_brothers yaoi|3463597552