Epic disaster

We were pretty wrapped up in what we were doing when I heard the squeak of the second to last stair coming up to my room. I liked to call that my secret warning stair. I tried to quickly yank the blanket over Isabella and I but I couldn't find it after I had tossed it a few minutes before. And by that time it was too late. Jenna had already come up the stairs and moved into view while Isabella continued to jack me off.

"Hey guys, what's going on........What the hell is this?" she asked looking at us in a mixture of disgust and shock. And if it wasn't bad enough that my sister just caught my dick in my best friends hand, but that was also the moment that I hit my limit to hold back my cum. With a grunt, I shot my load with the most **** I had ever had when cumming. Unfortunately, with the size of the room and where Jenna was standing, she was right in the crosshairs of my shot, and so all of it, except for the ending dripples that dripped onto Isabella's hand and my hip, painted her stomach and upper legs soaking into her short shorts and painting her skin in my seed. We all just stayed perfectly still looking at the mess I had made on my sister as my dick slowly shrank back to its soft state, spent from the third cum in a little over an hour. Jenna was looking down at her stomach in shock clearly not sure where to go now. After all, it isn't really like there is a lot of precedence on getting your brother's cum on you.