My stepsister pretended to be a virgin and gifted me with a massive dildo of her stepmom

I was hanging out with my stepsis, discussing how she's never had any sexual experience before. It was a total surprise to me when she suddenly reached into her purse and pulled out a massive dildo that belonged to her stepmom. I was completely taken aback, but she insisted that it would be an amazing experience for us both. So, after a bit of hesitation, I let her give me a deep, sensual blowjob while riding the huge toy. It was a sight to behold, with her tight, pink pussy being stretched to its limits by the massive dildo. The sensation was intense, and it didn't take long for her to reach the climax of her orgasm. She eagerly took every last drop of cum in her mouth, leaving me completely satisfied. This was definitely one of the best experiences of my life, and I can't wait to do it again with my stepsis.