The Big ImageBoard (TBIB) - 4 fingers age difference anal anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro arched back arm markings arm tuft ass up bed black bars black markings black nose blue body blue fur blush bobbie (rotten robbie) bodily fluids brother (lore) brother penetrating brother brothers (lore) butt canid canine canis cheek tuft clenched teeth countershade face countershade tail countershade torso countershading dialogue digital media (artwork) duo ears back elbow tuft english text eyebrows eyes closed facial tuft fingers flat colors from behind position fucked silly fur furniture green eyes grey background grey body grey fur hair half-closed eyes heart symbol incest (lore) letterbox looking pleasured lying male male/male male penetrated male penetrating male penetrating male mammal markings motion lines narrowed eyes nude obscured penetration obscured sex older male on bed on front open mouth open smile penetration penile penile penetration penis in ass pillow pink tongue pivoted ears profanity robbie (rotten robbie) rotten robbie sex shoulder grab sibling (lore) simple background smile speed bump position sweat tail teeth text tongue tongue out tuft wolf younger male younger penetrated