Rule 34 Dev - abs anthro areola balls bdsm biceps biped blush bondage bound butt erection fur genitals knot looking_at_viewer male manly muscular muscular_anthro muscular_male navel nipples pecs penis raised_arm sitting solo spread_legs spreading submissive submissive_male thick_penis vein veiny_penis white_balls tamazuki_akiyama arcshep canid canine canis domestic_dog german_shepherd herding_dog mammal pastoral_dog|3856566455