The Big ImageBoard (TBIB) - ambiguous gender ambiguous penetrated anal anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro anus balls brown anus brown balls brown penis brown perineum brown stripes brown tail duo english text erection eyes closed famir (artist) genitals grey eyes hi res lying male male/ambiguous male penetrating male penetrating ambiguous markings nude on back open mouth penetration penile penile penetration penis penis in ass perineum red anus scalie sex simple background striped legs striped markings striped tail stripes tail tail markings text yellow body yellow tail