The Big ImageBoard (TBIB) - 2013 4 fingers adolescent against surface age difference anal anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro ball gag bathroom black body black fur black nose black tail blue body blue fur blue tail canid canine canis cheek tuft clenched teeth clothed clothing coiling comic countershade face countershade tail countershade torso countershading danny (rotten robbie) dialogue digital media (artwork) dobermann domestic dog duncan (rotten robbie) duo english text eyebrows eyes closed facial tuft fingers flat colors forced from behind position fur gag gagged genitals green tentacles grey body grey fur grey tail half-closed eyes hi res interspecies janitor jerry (rotten robbie) larger male looking back male male/male male penetrated male penetrating male penetrating male mammal multicolored body multicolored fur multiple scenes narrowed eyes nude older male open mouth penetration penile penile penetration penis penis in ass pink nose pink tongue pinscher profanity public restroom rape red ball gag restrained robbie (rotten robbie) rotten robbie school sex size difference smaller male smaller penetrated solo standing standing sex student suspension tail tan body tan fur tan tail teeth tentacle around waist tentacle in ass tentacle penetration tentacle rape tentacle sex tentacles text toilet tongue tongue out tuft two tone body two tone fur white body white fur white tail wolf young younger male younger penetrated