Living with my Dad and step mom, I had never really thought of my step mom in a sexual way. She showed off a lot of cleavage all the time and had a really nice ass, always showing off a cute thong while she bent over. I was 15 years old at the time when my first encounter happened with my step mom…

One day I was out side with her, I was sweeping and she was watering the plants. When we were going inside, she lead the way when my broom accidently rubbed up against the split in her ass cheeks.
She looked back and frowned, I said “sorry” then she smiled and winked. I didn’t think much of it, but thought it was weird how she winked.

The next day my Dad needed to go out and he was going to be gone all day. I was sitting on the couch
watching T.V. with my step mom when she said she was “going to put something more comfortable on”.
She came out in a tank top shirt, showing off lots of cleavage, and I noticed she had no bra on because her nipples were showing a lot. She had booty shorts on and her thong was rised up high on her ass.
She came and lay down on the couch placing her feet on my thighs and kept watching T.V.

I kept glancing over at her body, wondering how georgous her breasts if that layer of fabric wasn’t in the way. She said “Could you rub my feet for me?” I looked at her and said “sure”. I started rubbing her feet and she sighed every now and then, saying “that feels good” and so on. Then I got a little brave and moved my hand up her leg slowely and softly, her leg was very smooth and it made me really hot for her.