rule 34 anthro anus ass avian backsack balls beak berdly bird blue balls blue body blue feathers bodily fluids bottomless butt focus clothed clothing deltarune dialogue dirty talk dripping english text eyewear feathers furniture genitals glasses hand on butt hi res looking at viewer looking back lying male musk narrowed eyes not a furfag on side perineum pillow presenting presenting anus presenting hindquarters scentplay shirt smile smug sofa solo speech bubble spread anus spread butt spreading sweat tail feathers talking to viewer teasing text tongue topwear undertale series video games yellow beak 5504982