Rule34https://rule34.xxx/index.php?page=atom&tags=2016 age difference anthro anthro on anthro bandana big dom small sub blue fur bobbie brothers canine closed eyes clothing digital media (artwork) duo erection fur half-closed eyes humanoid penis incest larger male licking male mammal markings nude older male open mouth oral penis piercing raised tail retracted foreskin robbie robbie (rotten robbie) rotten robbie sex sibling simple background size difference smaller male smile standing teeth thick penis tongue tongue out uncut wolf yaoi younger male2024-05-05T18:34:52ZRule34