Pantsings

[Andrew20]

I started this new thread to reincarnate others based on pantsing. I'll start out with an experience from today.
So me and my girlfriend went to the pool today. Originally we were supposed to meet up with our friends but they flaked out on us. She wanted to stay so we did. I got bored fast. Now for those of you who don't know, my girlfriend is pretty thin, but super athletic and even more competitive. Oh and I'm not gonna deny that baby got back! So I told her "let's find out who the fastest swimmer is." She gave me a confident look and we both dove in. I knew she would be in front of me. Once we had lapped around the pool she was getting out. Me still being behind grabbed the back of her black bikini bottom and pulled. I got to see her firm, round ass cheeks clench as she tried to cover up and jumped back in the pool. She playfully tried to drown me and as usual we finished our day without bringing it back up.