I was hanging out at my step dad's house for the weekend, waiting for my friends to come over when all of a sudden my stepmom walks into the living room butt ass naked. She's complaining that I'm messy and I don't pick up my shit, which I have to admit is true. But forget all that, why does she not have any clothes on? Her excuse is that she's doing laundry. Oh, OK, that makes sense, I guess. I'm trying to listen to what she is saying, but I am totally distracted by her big ass. I've always admired her over the years. My step dad has really good taste in women. She noticed that I was staring at her curves, so she got closer to gauge my interested, and that's when she noticed my boner. I didn't know how she'd react, but it was better than expected.