I find my stepsister pleasuring herself

I was minding my own business, just trying to get some peace and quiet in my own house. I heard a noise from upstairs, and I thought it was my younger sister playing with her toys. But when I went up there, I found my sexy stepsister pleasuring herself. She was lying on her bed, her hand between her legs, lost in her own world of pleasure. I couldn't believe my eyes. Here was this hot, mature Latina lady, all alone, masturbating. I couldn't help but watch her, to see what she was doing to herself. She was rubbing her pussy, moaning softly, lost in her own world of pleasure. It was the hottest thing I had ever seen. I couldn't help but join her, and soon we were both lost in our own world of pleasure.