Her tight pants suddenly split with a loud rip, exposing a huge ass in a sexy thong right before my eyes. The sight freezes me in place and makes my cock instantly rock hard. Throwing caution aside, I push my huge cock through the thong and into her, then thrust away in a frenzy. She suddenly starts squirming but does not firmly resist, which I take as permission to continue. It becomes a once-in-a-lifetime stroke of unbelievable luck.