rule 34 absurd res anthro balls belly bodily fluids bright cachorroamor cum curled tail erection eyebrows full length portrait genital fluids genitals green body green skin green tail grey background hand on chest hands together hi res knot lizard looking at viewer looking up lying male male only nude on back portrait precum raised eyebrow red knot reptile scalie shaded simple background simple shading sketch smile solo spoctor theory spread legs spreading white background yellow balls yellow belly yellow body yellow skin 4394819