It all started when I was younger at 18. I would spend the weekends over my Aunt Pams house. She was 36 at this time, thinner built, long dirty blonde hair, tight body. She cleaned houses for work so her usual work clothes would consist of leggings/yoga pants and a tank top.
When she was working I would find myself curious and end up snooping around her room. I remember opening her dresser draw for the first time and seeing all these thongs, g strings, and lingerie. Being a horny boy, I couldn't help but pick up a pair to examine. At first I wondered why all she had was these sheer and lace thongs, and why most of her pairs had white stains on the crotches. I fell in love with the way they felt and began to wonder what they looked like on her.
I was starting to get hard when I heard a car pulling in. Without thinking I shoved the thong in my pocket and quickly went back to the spare room where I would sleep. I pulled out her thong from my pocket to further examine it. The more I pulled at the strings the harder my cock got. Before I knew it I pulled down my gym shorts to let my semi hard cock out. I wrapped her lace thong around and began stroking myself with it. I had the waist strings around my balls like a cock ring and my cock was standing at a fully hard 8". With each stroke I tried to understand how my Aunt wore such skimpy underwear, and my sack began to fill with cum. There I was lying back on the bed, shorts around my ankles, stroking my hard cock covered with her thong. This was the first time I started to think of her in this kind of way.
Mid stroke I heard the downstairs door close and Auntie Pam came into the house and called for me. I quickly pulled up my shorts, replied, and went down stairs to greet her. It was a hot humid afternoon, and she must have busted her ass at work because she had her hair up in a frizzy ponytail. She asked how my day was as she proceeded to put away a few groceries she had brought in with her. I couldn't help but stand back and watch her get down to put the canned food in the lower kitchen cabinets.