rule 34 2018 alex carpetwurm anal anal sex anthro anthro only ass balls blush carpetwurm colored consensual tentacles digital media artwork erection eye reflection feline foreskin fur fur tuft furry green fur hybrid lagomorph long ears lying male male only mammal no humans nude on back open mouth penetration penis perineum rabbit shaded signature simple background smile solo tapering penis tentacle tentacle sex toes tuft 2614433