rule 34 2018 4 toes absurd res after sex afterglow all fours anal anal knotting anal sex animal genitalia ankle tuft anthro anthro on feral anthro penetrating feral anus ass avian balls sergal bending bent over biped bird butt fluff cheek tuft chest tuft claws close up closed eyes cum cum drip cum in ass cum inside cum on ass cum on tail cum string cumshot cutaway digitigrade gy style domination dripping duo ejaculation elbow tufts erection evil grin excessive cum falcon feral feral domination feral penetrating anthro feralized forked tongue from behind position fur genital focus grin half erect hi res hindpaw imminent sex keel kel knot knotting larger feral larger male line art looking at partner looking at viewer looking back looking down looking pleasured looking up lying male mammal mane messy missionary position multiple positions multiple scenes nude on back open mouth orgasm orgasm face paws penetration penis peregrine falcon presenting quadruped raised tail rear view role reversal saliva sergal sex shaded sheath shinigamisquirrel shoulder tuft side view simple background size difference sketch page smile snout spreading standing stomach bulge tiercel toe claws toes tongue tongue out tuft vilous universe watermark yaoi zoophilia 2805071