I drove back into our property and parked the car in a shallow alcove to the side. I'd be going back into town to collect the kids from the cinema in a few hours, so there was no use putting it in the garage. I walked into the house and called out, but there was no response. I stopped off in the bedroom briefly to disrobe and place my clothes on the bed. I thought that the others were probably out by the pool and as I poked my head out of the back door, I found myself to be correct.
As I walked down the path towards the pool I could see the two women on one of the pool chairs, but Richard was nowhere in sight. As I got closer and past the shrub that had been obscuring my view, I found that Audrey was actually sitting on Richards face and that Wendy was gently massaging her husband's penis.
Audrey noticed my approach and smiled. She pointed down at Richard and gave me an enthusiastic double thumbs up with a huge grin on her face. As I opened the gate and entered the pool area, I got a better view of the action. Audrey was grinding her lady parts back and forth against Richard's face. For his part, Richard had this tongue extended making sure to service Audrey's clit and labia with each pass, also teasing the entrance to her love tunnel when she paused for a little special attention in that area.
"So, you've started without me," I said with mock indignation, hands on hips.
Wendy looked up from her work on her husband's penis and simply said, "Yep," and then started sucking his glans again. I could hardly believe my eyes when his manhood started to get even bigger.
"OK, Audrey," Wendy said, "he's all good to go down here for you when you're ready."
Without a word, Audrey started to wriggle her way backwards on her knees somewhat uncomfortably. She got part way along and decided to get up into a squatting position and finished off the remaining distance in very little time.
Wendy was holding Richard's penis aloft awaiting Audrey's arrival. As Audrey got closer, Wendy started to hum a fairly off key rendition of 'Also sprach Zarathustra', "Dar, dar, dar. DUM DUM. Boom boom boom boom boom boom!" she said dramatically.
By this time, Audrey was in almost position and begun to lower herself towards her date with destiny.
She looked over to me and said, "Wish me luck!"
"Good luck," I said in return.
Wendy started up with 'Also sprach Zarathustra' again. During the 'Dar, dar, dar', she had spread Audrey's labia with one hand and guided Richard's penis into place with the other. As she said the 'DUM DUM', Audrey plunged herself downwards and achieved docking.
Audrey let out a half groan half grunt sound as Richard entered her. She eased herself up slightly, wiggling her hips to readjust her position slightly before sliding down again. I watched as my wife straddled our brother-in-law gradually working him in deeper and deeper.
When she thought her usefulness had expired, Wendy stood up and walked over to me alluringly. Her breasts swinging from side to side slightly behind the rhythm of her swaying hips. She took a seat next to me and gently put her hand on my thigh.
We sat in silence and watched Audrey go to town on Richard. She was bouncing fairly vigorously and her tits were slapping up and down in time with her vertical gyrations. In spite of all this, we could still see daylight between them.
Audrey stopped for a moment and made a concerted effort to fit Richard in deeper. She wiggled her hips from side to side, front to back and in a sort-of combination rotary motion. All to no avail, she just could not take the entire length of his manhood. Not seeming the least bit disheartened, she resumed her enthusiastic humping and grunting.
"It took me years of trying before I could get him all the way in." Wendy said to me absently.
Wendy and I continued to watch in silence as Audrey got off Richard watching that huge dick of his flop onto his abdomen as it left the restraint of Audrey's lady parts. Richard stood up and Audrey went down on all fours on the pool lounge. Richard straddled the lounge behind her and aimed his torpedo directly at her moist slit. With one smooth motion, he was about three quarters of the way in and he started gently thrusting.
"So," Wendy said, "Have you decided if you're going to take me up on my little offer?"
"Why should those two have all the fun?" I responded.
"Really?" Wendy asked clapping her hands in glee, "Where would you like to start?"
I laid back on the pool lounge, spread my legs and put my feet on the ground either side of the lounge. Even though I had not responded verbally to her last question, the sight of my manly package on full display was enough of an answer for her to take the hint.
"Oh, fuck! Oh, Fuck!, I'm cumming, I'm cumming," yelled Audrey.
Wendy and I both turned our heads to look. Richard would thrust, Audrey would be propelled forward and rock back as her tits slapped back and forth. Thrust, rock, slap, thrust, rock, slap. It was a steady rhythm interspersed with Richard's grunts and Audrey's exclamations. Definitely an equal and opposite reaction resulting from an action.
Without me noticing, Wendy had turned her attention back to my manhood. She gently cupped my scrotum in one hand. That got my attention! I looked back to see her examining the area more closely. She was squeezing my balls very gently with one hand and lightly playing with my still flaccid dick with her other hand.
This went on for several minutes without too much success before she moved on to 'plan B'. She released my scrotum and started to gently pull at my pubic hairs, playfully not painfully, and gently blow up and down the length of my penis.
"That did the trick!", she said as my erection started to form.
She stopped blowing and started to gently suck on my glans. She took me slightly deeper and ran her tongue around the top. It was magical. Next, she wrapped her thumb and forefinger around the top of my scrotum and pulled it away from my body whilst simultaneously taking my shaft all the way to the back of her throat. She pulled back away from my body and she slowly released my shaft. She let out a little giggle as my manhood slapped back against my body and bounced a few time.
"My turn," she said making her way towards my head.
She stood directly above my face with her legs either side of the pool lounge. She bent her knees slightly as she positioned her lady parts where I could get a better view. Her outer lips had parted slightly, but she reached down and spread them further so that I could get a good look inside and I liked what I saw.
Her outer lips had a rose tinge and were slightly swollen. Her clitoris was slightly engorged and looked to be a fair size already, I know that she'd enjoy it when I played with that. What stuck out the most, if you'll parson the pun, were her labia. They were on the larger side than average and were fairly prominent. I could see how wet she was because long droplets of her juices where dangling enticingly.
She lowered herself just close enough for my tongue to be able to tease her labia. I flicked them back and forth with the tip of my tongue and got a taste for her juices. Most ladies that I had encountered were a little musty and sometime a little salty, but Wendy's was sweet. Not sickly sweet, but not unpleasantly sweet. She lowered herself some more and I tongue-fucked her vagina for a while as she moaned with delight.
She lowered herself even further and repositioned slightly so that her clitoris was now directly overhead. I started by teasing it gently before taking it into my mouth for a bit of gentle sucking. Whilst that was under way, I brought one hand up and rested it on one of Wendy's hips and I brought the other one up to her lady parts. After feeling the steady flow of juices that she was now producing, I inserted my index finger into her vagina.
I felt around inside for her g-spot for a while and had no luck. I was not quite all of the way in so I decided to explore a bit deeper. Ah, found it! Her spongy g-spot what just a little deeper than Audrey's. Wendy's felt a bit smaller that Audrey's but I knew when I hit the spot because Wendy moaned and ground herself against my face in tight little circles.
I decided to try a second finger and I started to finger-fuck my sister with my index and middle fingers as deep as I could go. She lifted off my face slightly and started to rock back and forth to the rhythm of my fingers. I felt her vagina clench down on my fingers and she groaned and made a few quick sharp forward thrusts and sharp inhalations before her whole body trembled in front of me.
She stood there on top of me, body trembling for what seemed like minutes. Eventually, her breathing returned to normal and she shuffled back along the pool lounge before giving me a gentle kiss on the lips and resting her head on my chest. I think that it's probably safe to claim that I had just given my sister her first sibling orgasm, and she LIKED it.
"Ride me you filthy bitch!" I heard Richard exclaim as I turned to see Audrey on top of him doing reverse cowgirl. He slapped one of her arse cheeks for good measure.
