My 18th birthday gift: taboo strap-on sex with my step-sister

I've been harboring a taboo desire for my step-sister since I was 18. When my birthday rolled around, I decided to take the plunge and fulfill my fantasy. I convinced her to join me for a steamy session of strap-on action. She was taken aback, but intrigued. After some persuasion, she agreed to give it a try. We started with a passionate make-out session, my tongue exploring her mouth, her hands roaming my body. Then, she unzipped my pants, revealing my hard cock. She took it in her mouth, expertly sucking me off. Next, she strapped on her toy and began to ride me, her tight pussy engulfing my throbbing member. The sight of her riding me was overwhelming, fueling my desire. We continued our wild ride, exploring each other's bodies in various positions, our moans echoing through the house. It was the perfect way to celebrate my 18th birthday, making it a day I'll never forget.