Step sister confrontes me masturbating and forcefully penetrates me with her dick

I was chilling out in the basement, trying to get my rocks off when my step sister barged in and caught me jerking off. She was pretty pissed about it, but things took a wild turn when she started to stroke her big dick. I didn't know what to do, but I guess I kinda liked it. She shoved her hard cock into my tight ass, making me moan in pleasure. We went at it for a while, with her fucking me hard from behind. When she was good and ready, she pulled out and sprayed his sticky cum all over my ass. It was a crazy experience, one I won't forget anytime soon.