Rule 34 Dev - 2018 abs anthro ball_gag balls biceps bondage bound canine chains cum dildo fucking_machine fur gag hi_res machine male mammal muscular muscular_male nipple_clamp nipples nude pecs penetration sex sex_machine sex_toy solo tattoo uken_l urethral urethral_insertion urethral_penetration urethral_sounding wolf|3369272152