I started rubbing on her pussy and it must have felt really good cause she was grinding against my hand and she had on some leggings so Got really wet...and I could feel it. So my sister in law pulls in the drive and and before she comes to the door she calls my phone asking who's car was out here in the drive way. I quickly tell her nobody and to hurry up and come in. If you could have seen the look on her face when she came in the house and saw another woman sitting there you would have died. At the same time that I felt utterly disgusted and demeaned, I felt an excitation start in my cunt. My interior cunt muscles began to ripple and the juices started to run, to the point I felt them trickle down the insides of my thighs. Don’t ask me to explain it would be impossible. Chalk it up to the complexities of the human mind. I was getting sexual excited from being pissed on. There was no denying it. The ripples in my cunt were the first signs of an impending orgasm. My nipples began to. Mostly unintentional touches, but plenty of aimed hand-grabs too. Kelly’s ass was getting lots of action! Kelly was grinning ear-to-ear and loving all of it.We got some drinks and moved slowly through the crowd when a hand grabbed my arm. It was a guy I knew from my job, but we didn’t work for the same company. Brian hollered over the noise, “Dude! Come hang out!” We followed him a few feet to a small high-top table.Brian was lit like a Christmas tree. We gathered that his other friends had. At two Abby asked what I wanted for dinner and I told her that I thought that we would go out for dinner.Knowing Abby as well as I did I knew what telling her that we would eat out would do. Sure enough, around four, Abby told me that she was going to shower and get ready to go out. As soon as I heard the shower running I hurried out to the garage and opened up the trunk of Abby's car. Sure enough the spare was there and so was an overnight bag. I opened it and found two pairs of high heels,.