This happened years ago when I was 19. I was visiting my gf (18) hometown as we met in college and were from different states. I had never met her parents before, and they were very traditional Catholics.

They lived out in the country, which was new to me being from the city. They had an above ground pool that you could barely see inside when standing outside. Her and I were swimming and as you do when young and barely clothed, we started having some fun. I pulled her bikini bottom down a little and began fingering her while she kissed my neck. I was leaning against the wall of the pool and she went underwater and pulled out my throbbing cock.

She started sucking it, which usually doesn’t feel great underwater but I hadn’t seen her in a couple weeks so I wasn’t going to last long. She would come up for air and I would slip her top to the side and suck on her hard nipples. Back down she would go, arms wrapped around me while she slid it deep into her throat. It was honestly impressive. Just as I was getting close her mom pulled into the property and parked in the yard near the pool. Her mom stepped out of the car and said “Hey anon! Glad you are enjoying the pool!” As I was going to grab my gf to come back up and stop, I came uncontrollably, and as I responded out loud I said “Thanks… hmmm, it’s, it’s ggg-great!” While doing that sort of involuntary twitch that sometimes happens when you cum hard.

I was proud of myself, I thought fast after, and said “(My gf) can hold her breath for so long! We are having a competition” And as I said that she came up for air literally spitting a watery cum mixture out. Thank god it was dark enough out now. She said “Oh hi mom! The water is so warm tonight!”

I couldn’t look her mom in the eyes for the rest of my stay lol.