When I saw the title I was hoping for a monster girl release...I guess not.
'Pegging' tag, eh? He was a huge ass anyway, so it doesn't matter if his actual ass gets a bit wider, right? He can't be any more of an ass than he already is, after all...
after reading the title i expected her to be like an actual oni in disguise w hints like her pointy canines strength size etc and after teasing her shed awaken her true form and he'd get served
sadly that wasnt the case but im glad his little punk ass still got served huehue