FURVERT!

1:1 abs absurd_res anthro ball_gag balls bdsm biped bondage bound canid canine canis collar domestic_dog edan_shepherd erection gag gagged genitals german_shepherd herding_dog hi_res kneeling knot leash male mammal muscular muscular_anthro muscular_male nude pastoral_dog penis scar seibear simple_background solo submissive submissive_male