Rule 34 Dev - 2016 4_toes 5_fingers all_fours anthro anus ass backsack balls black_nose blonde_hair brothers canine cheek_tuft countershade_face countershade_torso cum cum_in_ass cum_inside cum_while_penetrated dipstick_tail doggy_style duo erection fluffy fluffy_tail fox from_behind_position fur furry glans grey_background grey_eyes half-closed_eyes highres humanoid_penis incest leg_wrap looking_back male mammal markings multicolored_fur multicolored_tail muscular muscular_male nude open_mouth orange_fur penetration penis perineum pink_penis pointy_ears pouncefox sex siblings simple_background soles toes tuft twincest twins two_tone_fur white_balls white_countershading white_fur yaoi|2614383168