FurryBooru - abstract background ambiguous penetration animated anthro balls big balls big butt big penis butt canid canine canis d-rat duo eye roll female from behind position from front position fur genitals grey body grey fur grey tail hands on legs larger female larger sub legs up male male/female mammal mating press murid murine pawpads penetration penis perching position pink feet pink hands pink penis purple eyes radia rat rodent sex short size difference smaller dom smaller male smaller male larger female standing on butt terubby wolf yellow fedora