FURVERT!

anthro anus backsack balls big_butt biped border_collie butt butt_heart canid canine canis cashmere_(cashmerix)cheek_tuft collie domestic_dog eyes_closed facial_tuft floppy_ears fur genitals grey_body grey_fur harlem herding_dog hi_res male mammal multicolored_body multicolored_fur narrowed_eyes nude pastoral_dog perineum pink_anus presenting presenting_anus presenting_hindquarters raised_tail sheepdog solo spots tail tuft