My step-dad watches as I use my girlfriend's petite body for pleasure

I indulged in my forbidden desire and seduced my friend's petite girlfriend. As my step-dad watched, I explored her slender body, relishing every moment.

I've always had a thing for petite girls with small tits and narrow asses. My girlfriend, fortunately, fits the bill perfectly. I've shared this secret fantasy with my dad, who's always been open-minded about such things. When my dad was around, I'd subtly hint at my desire to have him watch us in action. One day, when my girlfriend and I were alone with him, I decided to take the plunge. I had him sit on a chair, facing the window, while we got down to business. His eyes were glued to us as we indulged in our passion, oblivious to his presence. It was a thrilling experience, knowing he was there, watching us. I'm grateful to have a dad who understands my desires and supports my unconventional fantasies.