The Big ImageBoard (TBIB) - 2016 5 toes all fours anal anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro ass up digital media (artwork) doggystyle duo ears back facial hair feet from behind position hair heart symbol horn interspecies larger male larger penetrated lemur male male/male male penetrated male penetrating male penetrating male mammal markings mature anthro mature male mcmadmissile monochrome nipples nude penetration penile penile penetration pivoted ears prehensile feet primate pubes purple and white rhinoceros ring-tailed lemur ring (marking) ringed tail sex simple background size difference small dom big sub smaller male strepsirrhine striped markings striped tail stripes tail tail markings tail tuft toes tuft watermark white background