Public Restroom Sex with Step-Sis

My stepsis and I have been fooling around on the low for a little while now. Knowing that it’s forbidden for us to fuck each other, turns us both on! But lately we have been pushing the boundaries, to see how far we can flaunt our taboo sexual actions….and still not get caught. Just recently our new parents took us out to dinner. During the appetizers, my stepsis started to rub her fingers up my thigh towards my crotch. I had to sit and talk to my stepmom about my why I needed a tutor for algebra, while my she gave me a handjob under the table. I was about to explode my load all over her hands, but then the waiter brought the entrée’s. This was painful as my cock was throbbing, and my balls were swelled up with cum! Stepsis thought this was funny….but I knew I had to figure out a way to get my release, and soon! After we finished the main part of our meals, she decided to excuse herself to go to the restroom. I knew we had some time to kill before our deserts would come, and my balls were super achy but I knew I had to act quickly… Watch as I surprise my stepsis in the public restroom, while she is still sitting on the toilet! I lock us both in there, pull her jeans down….and fuck her right in the restaurant’s restroom! Then just to make sure she doesn’t get pregnant, I bust my swelled nuts into her open willing mouth….and she swallows my entire warm sticky load of babies. Desert is served!!