This story focuses on the theme of cuckolding. It also includes sexual situations between a brother and sister. If these things don't interest you, please do not read further. Thanks for your time.
This is Part 3 of the story, please read Parts 1 & 2 for proper context. Thanks.
*
"Can you get my purse, please Hon," my wife said as she adjusted the hot water.
My wife had just had two explosive orgasms while fucking Ron and both Ron and I had cum inside her tight pussy. I was certain she would be content to head back to the room. I was seriously confused as she stripped off her dress and bra and turned on the shower.
"Let's get showers back in the room," I said.
"No, let's stay a little bit longer. Didn't you think that was hot?"
"Yeah, it was hot but we got what you wanted. I saw him beg, just like you wanted. We have memories to last a lifetime. You fucked him enough. Let's head back."
Amber stepped closer to me and grabbed my cock. "Pretty please? I promise I will make it up to you. I'm still horny babe, aren't you?"
I was at a loss for words, "I don't know. Can't we just go back to our room and fuck?"
My wife pulled my cock some more, looking me dead in the eyes. I could tell she was a little drunk but she shocked me when she said, "I want to fuck him one more time. Please, I need to get it out of my system, I've never felt anything like his dick. Please Mike. One more time, I want it. I want to infuriate your sister some more too. I will make it up to you."
My dick was getting hard again. At this point I figured what did it matter? Ron had already fucked my wife's face, her tits, and cum inside her. How much worse could it get? I may as well let my wife "get it out of her system".
I walked out of the bathroom to get Amber her purse as she got in the shower. The bedroom was empty but I could hear voices on the deck. I grabbed her purse, dropped it in the bathroom, and walked out onto the balcony. There was a small hot tub tucked into the left side of the balcony. Ron was sitting leisurely with both arms spread out wide on the lip of the hot tub, with my sister tucked under one of his arms, leaning on his chest.
"Hey Mike, I wasn't sure you guys were sticking around," Ron said.
"I told you they wouldn't leave," My sister replied to Ron. Then she turned to me and said, "Where's Amber?"
"Taking a shower," I said sheepishly.
I stood there in silence for a few seconds when Ron said, "Just tell him the truth will you?".
"I have told him the truth, this is for his benefit. I don't think Amber has been transparent with him," She quipped.
Ron urged her on, "He's your brother for christ's sake. He looks lost right now, you have to tell him the whole story."
My sister shrugged and started talking fast, "Don't be upset, Mike. You are the fifth husband to be in this same position?"
Confused, I said, "What do you mean the fifth?"
"I guess I'll start from the beginning so you understand. I caught my first husband, Tom, in bed with my best friend at a party and it destroyed me. The dual betrayal, the depression; it sent me into a really bad and lonely place for a long time. I even considered suicide. I tried to get over it, and Tom swore that my best friend, who was married to her high school sweetheart, had pursued him relentlessly and I just didn't believe him. My best friend told me that Tom had taken advantage of her in a moment of weakness and that she loved her husband. I believed my friend and divorced Tom."
"Either way, I figured it had to be my fault, I was a bad person, a bad wife, a bad friend. I felt that way for years until I met Ron. Ron and I were very open with our past relationships and our feelings. He told me how as a single man he often struck out with single women but was ruthlessly pursued and hit on by married women. His friends, co-workers, and even strangers wives would often flirt and try to get him in bed. I began to wonder if I was wrong all along believing my friend."
My sister continued, "Maybe some married women are just genetically predisposed to cheat, or they wanted to relive their single days, or possibly they just get bored with their husbands? Ron told me story after story of married women being much more forward than single women. I was skeptical, so Ron and I conducted our own experiment. We would 'test' any couples in our circle that stayed at our shore house. The first one was Ron's good friend from college who had been married for 5 years and had three kids. Ron told me how his friend's wife had often flirted with him, sometimes in front of her husband playfully but aggressively when her husband was out of sight."
Ron nodded at this. Nicole said, "We invited them over for a weekend a few years back. She flirted with Ron all day. To test her limits I mentioned to her in private I wouldn't be mad if she wanted to mess around with Ron. That same night, she slipped out of bed with her husband and came to our room and gave Ron a blowjob while I watched. The very next night Ron had her bent over the couch while her husband watched and jerked off."
Ron smiled as if recalling that night. Nicole continued, "The second couple was my good friend from work and her accountant husband. I dropped a few hints to her about Ron's virility and within a few weeks she was begging Ron to fuck her while her husband encouraged Ron. There were two more after that. The last one, before your wife, was my old best friend who destroyed my first marriage. I called her under the pretense of rekindling our friendship. Two months later she was on her back like just the others with her husband watching in tears. Only two wives of the seven couples we are friends with resisted and have shown no interest in betraying their husbands"
I was raging at this point and said tersely, "So you decided to include my wife in your sick test?"
