Aunt Renee was married to my mom’s brother. She and my uncle divorced but she’s remained a solid part of our family. I (m19 at the time) was over for an end of summer family pool party and bbq.

Aunt Renee is a throwback beauty. She’s short with big frizzy hair and large tits. She’s the aunt that will greet you with a kiss on the lips. I adore her.

We had been there for a while. Most of the family were in swimsuits, including aunt Renee in a classic bikini. I was still wearing the clothes I arrived in.

“Why don’t you go in and change,” she suggested in passing. I figured it was time; I was warm and ready for a swim.

I grabbed my stuff and went inside. The bathroom was occupied, so I waited my turn in the hallway. Aunt Renee came around the corner and saw me standing there.

“Use my bathroom,” she offered. Her bedroom was down the hall with its own bathroom. I thanked her and headed over.

I passed her bed on my way to her bathroom. The clothes she had on earlier were folded and stacked neatly on her bed. On top was a dark green satin string bikini. The pervert in me took over.

I went into the bathroom and stripped down. I slipped her panties on. Everything fit but my raging hard on.

I was in such a hurry to beat off I didn’t shut the bathroom door. I thought I closed the bedroom and would be fine, but I was wrong.

I had barely started when I heard aunt Renee’s voice. “I thought that’s what I heard,” she said with a giggle.

I instinctively turned giving her a full view of my thick cock bursting out of her panties. I quickly turned back and began my apologies.

She just laughed.

“Don’t worry, they look cute on you.” She stepped back from the bathroom door into her bedroom.

“I’ll be out in a second,” I said.

“Take your time and finish,” she said. “No one else will bother you, I just needed to grab my flip flops.”

“Not sure I could finish,” I said. I heard her giggle, then I heard her stepping back into the bathroom. I stood frozen.

She walked up behind me carrying a towel. “Hold this,” she said, “I don’t want to make a mess.”

I took the towel and she pressed her body against my back. She reached around and grabbed my cock. “Is this ok,” she asked.

“Yes,” I answered.

“You sure?”

“Oh yeah.”

I slipped off her panties and she started stroking me. She played with my balls with her other hand.

It wasn’t long before I blew my load. She kept jerking as I shot streams of cum. It would have been a mess if I didn’t have the towel.

She asked if I felt better and I did. We both washed our hands at the sink. She through the towel in her bath tub saying she would take care of it later.

She squeezed my ass, gave me a kiss, and told me to hurry and join the rest outside.