If only she knew! Picked up by stepbrother and fucked AO during our phone call!

I've been on the phone with my best friend for far too long again, and I just wanted to know exactly what's going on with the party this weekend. However, my thoughts ended abruptly when I suddenly felt a hand on my bare ass. I was so engrossed in my phone call that I completely forgot about my stepbrother who was visiting. My already short dress has probably pulled over my hips so that my bare ass literally attracted him. The sight seemed to make him pretty horny as he started massaging my pussy and kneading my ass. What am I going to do now?! If she finds out that I'm doing this during our phone call, I can never look her in the eye again, especially not when she finds out with whom! And since that wasn't enough, he suddenly took off my thong and pushed his fingers into my pussy. Now it was done, I could no longer suppress the moaning and noticed how suddenly my pussy was totally wet. I had to end the call as soon as possible before it got even more embarrassing for me and escalated completely, cock horny as I was now! What a brazen action!