Alexa is my girlfriend's best friend and I had to fuck her to strengthen the friendship.

Alexa, my girlfriend's bestie, was always around. One night, after a few drinks, she came over looking hot. I couldn't resist. We ended up in the bedroom, and I took her doggystyle. She moaned as I hit it from behind. It was raw and intense. The next day, we pretended nothing happened, but the friendship felt stronger, like we shared a secret. My girlfriend never suspected a thing.