Bev rubbed her tits along my cock, then began stroking me. It had been building all night, she stroked some more and I could feel it coming."Bev, I.."...Go ahead, make a mess." I went off like a missle. Cum flying up in the air. Cum on me, cum on Bev's tits. A build up that finally found release. "I'm going to get a towel, you wait right here, we're not done."Bev left, but I pondered her last words. Not done? Then I realized what we'd just done. My sister had jacked me off. I'd CUM on Bev. Then I. “Wow’ was my answer. She came close to me a pulled down my zipper.My dick was begging me to take it out. It did have the mind of its own though. When she pulled down my jeans my cock plunged out and to my surprise she put the thing in her mouth. She must have been watching those hard-core movies. The touch of her tongue on my penis was very ticklish at first but as my mind slowly accepted the fact that it’s in a gorgeous woman’s mouth, It grew harder and harder. She sucked onto it for a while. I ran my arms underneath her knees; she lowered herself the rest of the way down my dick. This time I found bottom, my cock sunk all the way to my balls. “oh my…shit, fuck” she moaned as she slowly slid herself up and down the full length of the shaft. We were soaking wet with sweat, beer and a bit of mud. Her slide began to turn in to pounce, then to a hop.We were just about to get into a full on crazy fuck when the light turned on as the opposite garage door began its slow ascent. The music. So I stopped for a moment to let the urge to cum pass, I was only a stroke or two away and so I had to pull out, taking the time I needed to recover to reposition April’s ass and back side so it was right in his line of sight and to make sure her head was facing away from him as I plotted my next move. Once I had everything about right I again looked back to see if Larry approved and again was met with a huge grin. I started to smile myself and almost laughed out loud, but April's hushed.