Chapter #5Going to School by: Unknown “Oh my God, Sarah, I can’t believe you just did that!” Said an amused Suzie. She was smiling and clearly enjoying the situation a bit too much. “When are you gonna let James out?” She asked as her older sister ran a hand down her right hip and around the swell of her right buttock. Sarah paused for a moment, presumably thinking on the question posed by her younger sibling. “Meh, I don’t know,” Sarah finally answered, “I’ll probably change him back later today. Or not. It feels nice having him back there, you know? Having total control over someone else, it’s kind of hot. I may just keep James for a while.”
Suzie chuckled as Sarah slapped her brother-infused-butt. When her hand impacted her behind something seemed odd; she raised a quizzical eyebrow as she took a handful of her butt cheek and gave it a gentle squeeze. “Suzie,” Sarah began, addressing her younger sister, “does my butt look weird to you?” She asked. Sarah pointed her round behind at her sister while looking back over her shoulder. Suzie furrowed her brow in confusion while she looked upon her sister’s backside. “I don’t know what you’re talking about--hey wait!” Suzie exclaimed, “now that you mention it, your ass does look a little bigger.” Sarah rubbed her backside before giving it another squeeze. “I thought something felt off about these jeans. James you jerk, you made my ass fat!”
Indeed, it would seem that your transformation had left Sarah with a modestly larger rear end. It appeared that at least some of your biomass had actually been added directly to Sarah’s buttocks in the form of superfluous fat and tissue. What wasn’t assimilated and turned into additional mass on your sister’s plump rump was most likely used up as fuel for the transformation itself. Sarah continue to prod her behind. She poked at a cheek and noted how the denim clad flesh dimpled under her finger. “God, that’s fat! You must have added at least...a couple inches to my ass, James. No wonder my panties and jeans feel tight. We’re hitting the gym tonight, bro. Tonight.” Said Sarah. She then gave her brotherly rear a little smack. Sending ripples through the flesh.
“Well, I don’t know, Sarah,” Started Suzie, “I think you sort of look even better with a bigger butt, it really compliments your thin waist.” Sarah gave her hips an exploratory shake as she continues to fondle her enlarged buttocks. “I guess you're right, I mean it’s not like it’s super noticeable.” Suzie nodded. “Yeah, and besides you always kind of had a big ass anyway, what's a couple layers of fat more?” Sarah growled under her breath as she gave Suzie a mean look. The younger sister simply grinned. “Be that as it may, I’m serious about the gym thing, can’t have it, him, getting too big.” Replied Sarah. She stood up straight and faced Suzie, her hands resting on her shapely hips. “Anyway, I should be heading out, I have classes until this afternoon, and I don’t want to be late.” Explained Sarah as she turned and headed towards the door.
Suzie watched as her older sister left their currently indisposed brother’s bedroom. Sarah walked with a bit more sway in her curvy hips than normal, her enlarged, jean clad booty bounced and jiggled pleasantly as she turned the corner and left Suzie standing alone in James’ room. Suzie found herself wishing that she had thought to change James into part of own body.
You could not see anything inside Sarah’s tight jeans, but you could tell that she was walking and taking you along with her. Your form shook and bounced with every one of her footfalls. She had said that she had classes today. Sarah was a college sophomore and her campus was close enough that she could drive there from home. It did not take long for you to realize that she was getting her school gear together and was heading out to her car; you were going to be your older sister’s ass while she drove for over an hour to her college!
You shouted up towards Sarah, pleading for her to change you back, but like the last time your voice was heard as your sister passing gas. Your transformation into Sarah’s prodigious buttocks had repurposed your mouth to behave and function as her anus. A girl’s tight, pink butthole was a poor substitute for an actual mouth, and every time that you opened your mouth to speak would only result in Sarah farting. Something she was all too aware of herself since she made a sound of disgust at your latest gaseous expulsion.
Sarah could sense her transformed brother’s panic and outrage, and it made her smile with delight. As she left the house and closed the front door behind her, she ignored the odd feeling of her butt hole tensing and relaxing as her brother-turned-butt expelled her flatus while trying in vain to speak. James frantically puttered behind her as she walked over to her small four door sedan. Sarah paused when she placed a hand on the driver’s door handle.
“You know, James,” Sarah began, addressing her plump, round behind all the while still gripping the driver side door handle, “it would in your best interest to stay on my good side.” Sarah noticed that her butt tensed up at the sound of its name while also going silent. “Smart,” She continued, “now here’s how it’s going to go down. You are my butt now, and that’s that. I’m going to get in my car and drive to school; you are going to be a good butt and be nice and quiet for your sister, otherwise I may have to resort to more...drastic measures to bring my rebellious backside into order. Trust me, you do not want that. Understand?” Sarah felt her buttocks tense before, and after a few moments, they relaxed and settled back into shape. “Good, butt-boy! I’ll take that to mean you'll behave yourself.” She said with a reaffirming pat on her rump. “I couldn’t have been involuntarily farting all day just because my former brother was throwing a tantrum.” Sarah opened the door and placed on foot into the car. “Remember, not a peep out of you and maybe I’ll think about changing you back earlier than I had planned.” That being said Sarah fully sat in the car and closed the door. She felt her brother’s added mass spread out and flatten beneath her as she settled in her seat. Sarah could feel James' displeasure to being sat on as well as his discomfort and she cracked a mischievous grin. He was just going to have to deal with it.
Sarah started up her vehicle and promptly backed out of the driveway and on to the main road. She put the car in drive and before long she and her brother padded ass where driving down the street.  indicates the next chapter needs to be written. |
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