Rule 34 Dev - 2013 4_toes 5_fingers anal anal_sex anthro ass backsack balls biceps black_fur black_nose border_collie cam_collins canine clenched_teeth closed_eyes clothing collie cum cum_in_ass cum_inside cum_on_wall cum_while_penetrated cumshot cybernetics duo echidna erection excessive_cum from_behind_position fur gloves hair hands-free humanoid_penis leostar looking_pleasured machine male mammal metal monotreme muscular muscular_male nude orgasm penetration penis prosthetic_arm purple_eyes rear_view red_fur red_hair sex side_view smile standing sydneysnake teeth toes white_fur wolfblade yaoi|2213550536