It appeared that there is a biological limit to how long and how intense sexual stimulations and orgasmic release can persist, and both Dolly and her black lover, Terry had reached that Rubicon! Eventually, the three sat down and admired Dolly, her tits, her belly, her cunt, her legs, and particularly her face. She was beautiful in every respect and they had fucked her eyeballs all but out. She had that dreamy "just fucked" look and made no effort the get up to release her still taped hands or to escape. She simply lay there breathing fast and deep Her cunt oozed a silver creamy ribbon of semen.. She looked like she could take a little more, the two men thought. Stan suggested that while it was still early, maybe they should try a double donging. Mace agreed and claimed the back door of her ass and Stan could fuck her cunt again. They undid her taped hands and told her they would allow to go once they fucked her one more time. Dolly weakly shook her head and prepared for the onslaught. Mace lay on his back on the bed with his new stiff truncheon sticking up like a rocket on the launch pad. Stan told Dolly to crawl up on the bed and put Mace's cock in her asshole. Dolly had never experienced anal sex before and was hesitant. As she slid down and settled on his hard-on, Mace dipped his cockhead into the dripping juices from her pussy and rubbed them on her asshole to lube his way inside her. The juices made her asshole slippery as glass and surprising her his slender cock slid right in clear to the hilt. Next, He reached up and cupped her enormous tits and pulled her back toward him. She felt his long cock in her bowels and felt strange erotic sensations start to happen. Then, Stan crawled up on the bed and inserted his cock into her yawning cunt hole. Now she was doubly impaled. One cock in her ass another in her cunt. She had difficulty telling the sensations of a double fuck apart. Was that shiver from the cock in her ass or was it from the one in her cunt. It all felt wonderful to Dolly. She couldn't move very well in this position, so it was all up to the men to provide the movement. So they set to work. Each timing his in stroke to match the others. Each in turn lifted Dolly to new heights. She felt filled , completely filled with cock. Her head now lolled on her shoulders as if her neck had been broken. Her smile was half lust and beatified ecstacy. Over and over she orgasmed. Over and over, the men beat into her body. The without saying anything, Stan cried, "I'm cumming, I'm cumming!", stiffened and shot his load into Dolly's cunt. Within seconds, Mace followed with another blast of cum up Dolly's ass. Dolly did not want the feelings to stop and she kept almost jumping up and down on the men's cocks. First Stan pulled out, no pop this time. Dolly's cunt was stretched and extended to new dimensions that would take some time to return to normal. The men wiped their swollen and reddened cocks off and did their best to clean Dolly's dripping orifices. They dressed and threw Dolly the doctor's lab coat that Stan had worn. She shakily wrapped herself in the lab coat and was quietly helped out of the abandoned office and led her to her car. Making sure that she knew where she was the men ran to their hidden car and quickly fled the scene. Dolly sat still stunned and uncomprehending for 30 minutes or so before fumbling for her key. She started her car and very cautiously drove home. She met Rob in the doorway and kissed him. He noticed there was an aroma about her that he could not place. He did not associate that aroma from the four hours of rampant sex that Dolly had just endured. And after she had taken a hot bath and let the hot soapy water wash over her swollen and traumatized labia, wash into her raw vaginal walls, sooth her stretched and sore anus, it served to revive the memories and the pleasure. She gingerly fingered her open cunthole to allow the soothing water to enter her and wash out the fuck fluids still inside her. She tried to open her asshole but it was still too tender. Her tits felt wonderful under the warm water. She gently pinched her erect nipples and felt the rush of the strange men's hands working her tits into hardened excitement. She luxuriated in the bath for over an hour. When she emerged, she toweled her body and dressed for bed. Meeting Rob in the bedroom, she lovingly kissed him on the cheek and pulled the bedclothes over her. She had the memories and they were hers. She would not share them with Rob, or anybody else. They were hers and so they would be forever...

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