Consensual anal sex with my 18-year-old stepsister

I've been harboring a secret desire for my 18-year-old stepsister since I first laid eyes on her. She's a stunning beauty with a voluptuous figure and an insatiable appetite for pleasure. One day, when we were alone in the house, the opportunity presented itself. I couldn't resist the temptation to explore her further. We headed upstairs, where she eagerly unzipped my pants, revealing my throbbing desire. She took me in her mouth, skillfully working her magic. Soon, I had her writhing in ecstasy on the bed, her sweet pussy being filled with my throbbing member. But that was just the beginning. I wanted to take our exploration to a whole new level. I asked if she was willing to try anal. To my surprise, she said yes. With her consent, I began to delve into her tight, inviting backdoor. The sight of her big, luscious ass being stretched by my size was a sight to behold. It was the best anal sex I've ever had.