Rule 34 Dev - 2010 balls black_hair blank_background blue bondage c0nnerc00n canine canine_penis claws collar color colored couple crux cute e621 ear_tufts erection erk_gloom evil_grin eye_contact eyes feline furry gay green_eyes grey hair hexerade kneeling knot looking_at_another male muzzle penis raised_tail rope sex_slave sheath smile standing striped_fur striped_penis stripes tail yellow_eyes yellow_hair|645676128