I ended up having to teach the job to a new office lady, Ria, who is a bit of a natural airhead and has a big ass. My heart was pounding as I took care of my cute new junior colleague. One day, while working late with just the two of us, her plump ass spilled out from her tight skirt, making me fully erect. Even though I knew it was wrong, I ended up inserting from behind and ejaculating inside her. Feeling regret for 'doing it,' but grateful that Lia acted like nothing happened the next day. However, when faced with her big ass again, I couldn't hold back...
