Now we had reached the real centre of a woman's sex, "Her cunt." I asked Kim to lie on the couch and place one leg over the back and the other rested on the floor. In this position she was wide open for Cathy's further study. Crouching beside her I showed Cathy where Kim's cunt hole was, her inner cunt lips and most importantly her clitoris. I noted for Cathy that Kim was getting turned on because she was starting to juice up and invited her to feel for herself. Kim body shuttered as Cathy's fingers dipped into her swollen cunt. I showed Cathy how to Kim liked me to stroke her cunt lips and we both watched as Kim's clit began to grow under my manual stimulation. I let my fingers gently flick Kim's clit and her body began to tense and arch as a prelude to her orgasm. Before she could come though I demonstrated for Cathy the impact finger fucking and clit stimulation had on Kim. It was too much for Kim she went off and I told Cathy I could feel her inner cunt squeezing my fingers tightly as she spasmed. I invited Cathy to see if she could do the same. Cathy took over with relish, her eyes fixed on Kim's swollen cunt and her fingers stroking her clit while with the other hand she plunged two fingers in and out of her cunt. Kim went from one orgasm to the next several times, until I suggested to Cathy that I show her another way to make her sister come.

Cathy moved aside and I began to tongue Kim's clit and suck at her cunt. Kim despite several orgasms rapidly began to come again and I finished her off quickly then Cathy had a go. Finally Kim pushed us away. She was totally satiated she said.

It was "Time for bed," Kim announced and knowing that phrase had two meanings she clarified, "to sleep." She was all fucked out. I think Cathy wanted to join us but Kim insisted she use the spare room. She was afraid I would get up to something with her if we were in the same bed and she was probably right.

Before we went to sleep Kim suggested that we might let Cathy watch us fuck in the morning to yet further her sex education. With this pleasant thought in my mind I went quickly to sleep.

Cathy's Education Continued

When I awoke I could hear Cathy and Kim in the kitchen and grabbing a house coat wrapped it around me and headed to the kitchen as well. Cathy and Kim both had short housecoats on as well and were just finishing breakfast at the breakfast bar. I grabbed a bowl of cereal and sat down with them. Kim was asking Cathy how she had slept. Cathy was pretty non committal which prompted Kim to probe what was the problem.

It turned out that Cathy's mind was still racing through the events of the evening of sex with us. Kim asked her to tell us more. I could hardly wait. There is nothing turns me on more than listening to an attractive young woman talk graphically about sex. My cock was already beginning to respond. She told us she had really liked losing the pool game, in fact she had missed shots she knew she could have made. She really liked me ogling her. She went on to say playing with my hard cock and making me come was a first for her. Fingering Kim's pussy was really great too. She told us she had gotten so turned on thinking about our sex session that she had fingered herself off several times after she went to bed. She confessed she was still really horny despite it all. I know with all her talk of sex I was getting really turned on too.

I was a little unsure how to initiate Kim's suggestion that we further Cathy's sex education be letting her watch us screwing. I didn't have to worry because Kim took the initiative after breakfast. She took my hand and lead me to the living room telling Cathy to come along too because she would find it really interesting.

When we got to the living room Kim dropped to her knees and opened my house cost and without a word took my swollen member in her mouth and began to suck. I was half erect before we started but in a minute or two I was really ready for action. Without taking her lips off my cock Kim opened her housecoat and I watched as she began to finger her pussy. Cathy had taken a seat on an overstuffed foot stool close by. When Kim was ready she released my cock and stood up directing me to sit on the edge of the couch. She pushed my housecoat aside and told me to lean back on the couch. I was almost lying on my back. Kim, with her back to me stepped over and straddled my legs. She reached between her legs and slowly lowered herself onto my cock. She was really open in this position and I slipped into her easily. Kim told Cathy to pull her stool closer so she could see better. Cathy was bug eyed. I knew she could not have seen better my cock fucking my gorgeous wife's pussy at a better angle than this. Her cunt would be splayed open.

Kim began to lift herself slowly up and down. I could feel my cock almost slipping from her when she was at the top of her stroke. Kim asked Cathy if she could see alright. She didn't have to ask but Cathy described what she could see. "Jim's cock is really hard and wet." she began. "His cock is gleaming with fuck juice. Every time you lift up I can just see the top of his mushroom head." she went on. "Your inner cunt lips cling to his prick too when you lift off him and when you take him into you they disappear into your cunt. Your clit is really swollen too." "That's because I'm getting really turned on and close to coming." Kim replied almost out of breath. She was working pretty hard and despite the position my hips were flexing to drive my cock as deep into her as I could.

We kept this up for a few minutes and I heard Kim tell Cathy to feel her clit. "It's really hard." Cathy commented and I could feel her fingers sliding down the shaft of my cock as I withdrew and thrust into Kim's cunt. She was frigging both of us as we fucked. I began to come shortly afterward and my orgasm brought on Kim's. Even after my climax had passed Kim continued to come until my shrinking dick plopped from her dripping cunt. Cathy continued to finger her sister until she had come a number of times and finally stopped.