She put on a pouty expression, stuck out her lower lip, and whined, "Gee...you don't think I'm sexy, do you?" I laughed and told her I did, in fact, t...ink she was, and that I may have "accidently" looked up her dress. We both broke out laughing, and she said, "By the way, you STILL owe me dinner from the rainstorm night...remember?" I said, "Yes...pick you up at 7:30...where would you like to go?" "Someplace nice...I want to dress up," she said. I told her she looked quite nice the way she was,. “Okay,” she said. “Now tell me when you’re gonna cum. I want to pull it out and watch you in the mirror. I’m gonna jerk you off all over us.” She began to pump her body up and down while my cock remained lodged in her soaking wet pussy. From my vantage point I could see my stiff prick sliding in and out of my sister’s cunt. She leaned forward just a bit and I could see our union as if I were kneeling behind her doggy style. I was getting ready.A few more pumps and I felt my cum start to rise up. I'll own up that I did look up when she came. 11.35— twenty five minutes until midnight. Could I give her one more? I know she's very sensitive right after, so I needed to let her wind down a little but I didn't want her going off the boil.You might wonder why I was so keen to give Carol lots of orgasms— simple— I wanted her worn out and off to sleep, otherwise she was liable to be spending far too long teasing me and that felt like a painful trip.For a couple of minutes Carol lay in bed making. She didn’t find her dress in the bed…her saree…bra…blouse…panty…nothing…nothing were there. With heavy shock….Simi searched her whole room. And finally in the corner….the floor near the beerow….she found my thick cum which could able to fill a tea cup. Simi Was Shocked. “Someone has watched” She fell down on the bed holding her head.It took 10 minutes for her to relieve from that shock, then suddenly she ran to the main door…..shocked again….The door which was bolted by her just now was in.