My parents don't know. My stepsister and I are secretly in a relationship. At first, we were just sneaking around to be affectionate with each other behind their backs, but lately it's gotten a bit stale. But for me, the secret relationship itself was enough. But my stepsister wasn't satisfied with that, and eventually she ended up riding on my lap in front of my parents, hiding the insertion part with her skirt to have sex, seeking extreme thrills with such a fucking dangerous act! It was really fucking risky at first! Even I, who was trembling with nervousness, got hooked on the tense skirt sex. My dick is rock hard! After that, changing locations for sex, my stepsister's tension also went through the roof and became incredibly bold! Beneath the surface of an ordinary day, we performed extremely unreasonable acts. Once you taste that sense of depravity, you can't go back!
