In our fucked up family, sex is a taboo subject. My strict parents never talked about it, and neither did we. But my stepsister and I decided to change that. We started exploring our sexuality together, and it was a wild ride. One day, we heard my parents going at it in the next room, and we couldn't resist. We snuck in and watched them, our fingers slowly creeping into our panties. Seeing my dad's thick cock slamming into my mom's pussy was a sight we'd never forget. We were both so turned on, and we couldn't help but touch ourselves. I went first, taking his cum-covered dick into my mouth, tasting my mom's sweet pussy on it. My stepsister followed suit, and we both came hard, our bodies shaking with pleasure. It was the hottest taboo experience of our lives, and we knew we'd break more rules together.