Je me suis masturbé à côté de ma demi-sœur pendant qu’elle faisait ses devoirs en anglais

This day I came from the party, I hadn't been able to go with the cute boy I met so I was horny, I don't know why I started touching myself in my stepsister's room but I couldn't stop myself, the adrenaline that he could discover me it made me very horny.