Her long finger slid down her wet slit, and she moaned as she thrust her finger into her cunt hole. She pumped her pussy with her finger as she contin...ed to pull her hard, brown nipples. Mark could not believe how big his sister's nipples were. She had huge tits, bigger and firmer than any he had seen in any fuck book before. He pumped his cock harder, his rigid erection growing slick with pre-cum as he pumped himself. He cupped his balls, and fucked his fist harder as he watched his sister use. Gamble the money.”“Gamble, reinvest, whatever. Besides, you said I could.” He got so smug when he thought he was right about something.“Fine, fine. I’m getting more wine,” Karen said. She followed Greg to the cashier and took a little off his winnings. This time she wasn’t getting the cheapest wine. She was getting the second cheapest wine.The next two races were uneventful for Greg. He didn’t bet a lot on them and didn’t win anything. They were wandering around the track when Greg heard. I handed it over to her, and she released her sister’s hair, backing away to record the action. I took a hold of her head and started to fuck her mouth. I was amazed at her ability to take me down into her throat without any gagging. She was obviously experienced, because she had no problem sucking me deep while sneaking in her breaths with no interruption to the rhythm. I let go of her head and brought my hands down to cradle her big, soft breasts. I played with her nipples and squeezed the. She asked if we could go for a walk in the woods. I looked her, hesitated, too long for her I guess, as she took my hand and put it to her crotch. She rubbed my hand against it, we both knew what each other wanted. With that she put her hand on my crotch, rubbing the outline of my stiffing cock. I told her we needed to stop as mom and dad were downstairs. She said I’ll go get dressed, you get Boots and walked out of my room.I walked down stairs told mom I was taking Boots to look for.