I was giving my husband a blowjob when my stepmom walked in on us. Instead of leaving, she stood there, watching with a sly grin. I was embarrassed, but she seemed intrigued. She started asking questions, getting closer, and soon, she was right beside us. Her hands wandered, and soon, it turned into a filthy threesome. We took turns pleasing him, our moans filling the room as we indulged in this perverse family affair, leaving us all breathless and satisfied.