Rim job
My Shrunken Life (Re-Upload)
chapter 7
by
Bobob1
For a moment Sarah thought she felt something in her butt. She flexed her gluteal muscles and clenched her rather sizable buttocks, unwittingly pressing you flatter between the rotund masses, and mashing you further into the creases of her anus. She had no idea that you were even with her, let alone stuck to her backdoor. It was at this time Sarah felt a familiar pressure building up within her. She glanced around to make sure no one was nearby. Sure that she was in the clear, Sarah leaned forward against the control panel of the treadmill. She closed her eyes, arched her back, and with a grunt she passed gas.
You wanted to scream when the anus bulged outward around you and opened slightly. It was only a small poot, but for someone your size, and at your current position it may as well have been a microburst. The force of Sarah’s flatulence actually pushed your flattened lower half off the oily, sticky surface of her sphincter, your flat legs flapping in the exiting, warm, putrid flatus like a flag being whipped by the wind. Your mashed upper body remained stuck to the orifice however. Sarah’s fart only lasted for a few seconds. As your lower body fell back on top of her still slightly opened hole, your legs slipped into the opening of the sphincter just as the muscular ring closed up around your middle. You felt your legs become stuck to the moist, reverse side of the sphincter, just inside Sarah’s rectum. Your middle impacted the exterior of the anus with a dull, wet slap, and just like that you were trapped from the stomach down within your sister’s ass-hole, bent forward and conforming around its inner rim. The natural oils and God-knows-what held you in place like a disgusting glue. Fortunately your head was turned to the side, otherwise your face would be buried in it. You called out to Sarah as best you could, still able to talk in your squashed state, sadly your cries for help never reached your sister’s ears. You were too muffled between her thick buttocks.
Sarah sighed a relieved breath. That weird feeling in her butt was gone. Happy she re-started the treadmill and returned to her workout. You were in hell as Sarah exercised. As she ran on the treadmill you were constantly shaken about, her butt cleavage bouncing and jiggling around you. The heat coming off your sibling’s backside was considerable, a lot of it radiating from her labia not far below you. Sarah’s body heat seemed to rise as she exerted herself, the deep cleft of her plump rump steadily becoming sweatier, and the strong earthy stench between her cheeks growing more pungent.
Eventually Sarah finished with her run, and moved on to squatting. He had to suffer Sarah’s butt hole being stretched opening as you remained plastered to the inside of the muscular ring. During one of Sarah’s descents she farted again, and this time you could actually feel the foul gas envelope and wash over as tiny droplets of ass sweat were blown on you. Time dragon on as Sarah continued her workout. Meanwhile you were slathered with the oils covering Sarah’s anus, and more butt. As she walked around her anus would constantly squeeze, and flex around you while you remained pinned in its center. It did not take you long to notice that you were gradually being crushed flatter and flatter, slowly being rubbed and into the wrinkles, and creases of your sister’s dark rosebud. You had begun to look drawn on to Sarah’s anus now.
At some point Claire and Kim must have realized that you were missing and started searching for you because they came to Sarah.
“Hey, sis,” spoke Claire, “have you seen Ben? We’ve been looking all over the place for him, but we can’t find him.”
Sarah, who was currently sitting on a bench with one leg casually crossed over the other as she drank from a water bottle, swallowed, and gave a look of contempt towards her little sister, and her foreign housemate.
“I haven’t seen the little runt since we got here.” Sarah said. She was clearly annoyed by the two younger girls’ presence.
Kim wrinkled her brow as she caught Sarah’s attitude. “Well could you help us look for him” Kim asked with an attitude of her own. None of the three had the slightest inclination to just how close by you were.
Sarah huffed and rolled her eyes before…
You wanted to scream when the anus bulged outward around you and opened slightly. It was only a small poot, but for someone your size, and at your current position it may as well have been a microburst. The force of Sarah’s flatulence actually pushed your flattened lower half off the oily, sticky surface of her sphincter, your flat legs flapping in the exiting, warm, putrid flatus like a flag being whipped by the wind. Your mashed upper body remained stuck to the orifice however. Sarah’s fart only lasted for a few seconds. As your lower body fell back on top of her still slightly opened hole, your legs slipped into the opening of the sphincter just as the muscular ring closed up around your middle. You felt your legs become stuck to the moist, reverse side of the sphincter, just inside Sarah’s rectum. Your middle impacted the exterior of the anus with a dull, wet slap, and just like that you were trapped from the stomach down within your sister’s ass-hole, bent forward and conforming around its inner rim. The natural oils and God-knows-what held you in place like a disgusting glue. Fortunately your head was turned to the side, otherwise your face would be buried in it. You called out to Sarah as best you could, still able to talk in your squashed state, sadly your cries for help never reached your sister’s ears. You were too muffled between her thick buttocks.
Sarah sighed a relieved breath. That weird feeling in her butt was gone. Happy she re-started the treadmill and returned to her workout. You were in hell as Sarah exercised. As she ran on the treadmill you were constantly shaken about, her butt cleavage bouncing and jiggling around you. The heat coming off your sibling’s backside was considerable, a lot of it radiating from her labia not far below you. Sarah’s body heat seemed to rise as she exerted herself, the deep cleft of her plump rump steadily becoming sweatier, and the strong earthy stench between her cheeks growing more pungent.
Eventually Sarah finished with her run, and moved on to squatting. He had to suffer Sarah’s butt hole being stretched opening as you remained plastered to the inside of the muscular ring. During one of Sarah’s descents she farted again, and this time you could actually feel the foul gas envelope and wash over as tiny droplets of ass sweat were blown on you. Time dragon on as Sarah continued her workout. Meanwhile you were slathered with the oils covering Sarah’s anus, and more butt. As she walked around her anus would constantly squeeze, and flex around you while you remained pinned in its center. It did not take you long to notice that you were gradually being crushed flatter and flatter, slowly being rubbed and into the wrinkles, and creases of your sister’s dark rosebud. You had begun to look drawn on to Sarah’s anus now.
At some point Claire and Kim must have realized that you were missing and started searching for you because they came to Sarah.
“Hey, sis,” spoke Claire, “have you seen Ben? We’ve been looking all over the place for him, but we can’t find him.”
Sarah, who was currently sitting on a bench with one leg casually crossed over the other as she drank from a water bottle, swallowed, and gave a look of contempt towards her little sister, and her foreign housemate.
“I haven’t seen the little runt since we got here.” Sarah said. She was clearly annoyed by the two younger girls’ presence.
Kim wrinkled her brow as she caught Sarah’s attitude. “Well could you help us look for him” Kim asked with an attitude of her own. None of the three had the slightest inclination to just how close by you were.
Sarah huffed and rolled her eyes before…
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April 23, 2025
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