A Mother’s Mistake (Patreon)

Chapter One 

Elle thought it was an innocent idea.

Her younger sister, Lucile, had explained that in order to be a better mother, she needed to understand how her daughter felt. It did make sense. Her daughter, Camille, was one and a half years old, and things had not been good lately between them. Elle felt it was because she couldn’t connect with her no matter what she tried. Whether it was breastfeeding, playing, napping, or watching cartoons, nothing seemed to make things work.

In Elle’s mind, she was not living up to being a mother, and that was weighing on her and her personal life to the point that she had not slept with her husband for over a month already. He had moved to the guest bedroom and was disconnecting from her further and further every day.

“It’s all about helplessness,” said Lucile while helping Elle babysit, “If you don’t understand what’s like to be helpless, then you cannot take care of a helpless being, can you?”

“That’s a bit of a stretch, don’t you think?”

“And yet, it works wonders. At least with my patients.”

“What would being helpless look like?”

“Well, it’s obvious. You need to be treated like a baby again, around the age of your daughter, of course. That’s how you can connect with her. You’ll play together. You’ll be bathed together. You’ll eat together. You’ll sleep together. Among other things.”

“How do you come up with this kind of stuff? And how you get people agree to it?”

Lucile chuckled, “Well, because it works. That’s why they pay so much money. It just works.”

Elle turned to see her baby girl in the arms of her sister. Camille seemed happier with Lucile than she did with her, and that made her feel like the worst mother on earth. Perhaps her sister was right. Perhaps she could try to connect with her daughter through some role play, and if she could do so, maybe she could make life with her husband better. And she could finally have the happy family she’d always wanted.

“How do we do it?” asked Elle.

Lucile smiled devilishly.

“Next weekend, I know Steve is gonna be traveling for work. Why don’t I come, and become Camille’s and your caregiver? I will treat you both the same way, and you’ll get in touch with your baby.”

“Like the same the same?”

Lucile nodded.

“You know, diapers and stuff. It’s important for your to feel that so you can understand what it’s like for your daughter.”

“You mean wearing or using?”

“Well, both.”

“I don’t know, sis. It sounds too wacky. Do your patients really do it?”

“Oh, yeah. So many of them, and some actually enjoy not having any care in the world for a couple of hours a week. Although, the one that suffers it is me, changing an adult’s diaper is not the same as changing a baby’s.”

There was a short moment of silence.

“So, what say you?” asked Lucile.

Elle sighed, “Alright. But, don’t tell anyone about it.”

“It’ll be our secret.”

Steve left Friday night as expected. He gave Elle a small kiss, but there were no goodbye words or anything. He did, however, tell Camille that he loved her and that he was going to miss her so much. Elle did her best not to take it personally, but it made her cry herself to sleep that night.

The next morning, Lucile knocked at her door quite early. She seemed eager to start the experiment as soon as possible.

“I have everything we need,” She said, carrying a couple of bags, “So you don’t have to worry about anything.”

Elle smiled thinly, trying to help her sister carry the bags. But Lucile stopped her immediately.

“Hey, you are a baby today, remember? You do nothing but what I tell you to do. Alright?”

Elle nodded.

“Where’s Camille?”

“She’s still sleeping.”

“Good. That gives us enough time to get you ready.”

“Ready?”

“Yes. So come with me. We are going to give you a relaxing bath.”

“I can bathe myself.”

“Adult Elle can. But you are not adult Elle, right?”

“I guess so.”

Lucile took her sister’s hand and dragged her upstairs to the master bathroom. One of the perks of Steve’s job was that they did not have to care about spending, and their bathroom was a sign of it. It was beautiful and elegant, from the tiles to the glasses and everything in between.

“Alright. I’ll get the bath running, why don’t you help me and get naked? Get into the shower, and I’ll be with you in a minute.”

“I don’t know, sis. It sounds awkward to be naked with you.”

“Oh, honey. I’m going to see you naked more times than your husband had in a while. At least this weekend. There’s nothing to be awkward about. I’m a professional today, okay?”

Elle nodded again and did as told.

She really wanted to connect with her baby. She really wanted to connect with her husband again. And if she had to be a baby for a weekend, well, it was just a weekend. She could do it.

Elle got naked and walked into the shower while her sister started the bath. She wasn’t sure why she needed to shower before her bath, but she supposed Lucile had something in mind, and she was the expert, after all.

“Alright, now let’s get your body ready,” said Lucile, also getting naked.

Lucile was just five years younger than her older sister, but her body seemed out of Elle’s league. She was tall and curvy, with long blonde hair and beautiful, massive breasts. Elle’s breasts were big too, but it was mostly because of her milk. She was also tall, but a bit chubbier than her sister. Thirty-two years old, which she didn’t look, but she also didn’t look twenty-two.

“Ready?” asked Lucile.

Elle nodded.

Her sister cleaned her carefully, paying extra attention to her buttcrack and labia. But it was not just the washing that caught Elle off-guard. Lucile also applied some sort of cream on her armpits, butt, and her most private parts. Once the cream was washed away, Elle saw her smooth skin lose every sign of body hair, including her pubes. She felt even more naked than before.

“Is this really necessary?”

Lucile just nodded.

After the shower, which lasted almost fifteen minutes, Lucile helped her older sister into the already-filled bath. She gave her a rubber toy, as if she was a little girl, and left her there for a while. After five minutes had passed, Elle decided to play with the rubber toy as there was nothing else for her to do. During baths she would usually read a book while drinking some wine, but that wasn’t really an option.

“Let’s get you out,” said Lucile, still naked, though she was now dry.

Lucile dried her with a towel and led her to the master room. There, waiting for her, Elle could see why her younger sister had left her in the bath for so long. There was a pile of diapers of every color on top of the king-size bed, and they were not baby’s diapers. No, those were big enough to fit an adult, one as big as Elle herself.

Diapers weren’t the only thing in bed, though.

Baby powder, baby wipes, and colorful clothes that looked like they belong in a toddler’s closet but were big enough for an adult, among other things.

“Sis, what’s this?”

“Alright. I will lay down the rules now. this weekend, I’m not your sister. This weekend, I’m your mommy. Understood?”

Elle chuckled.

“You think it’s funny? You’ll have a change of heart when I spank you until you are a sobbing mess.”

Elle said nothing, but a fast chill traveled through her spine, making her tingle a little. A few drops of pee rolled down her smooth and long legs. Lucile must have caught it because she smiled, getting closer to her younger sister and placing her hands right over her pussy, making Elle blush.

“What are you doing?”

“Did you just pee a little?”

Elle blushed.

“You did, right?”

“It-It’s a normal thing. A lot of women get slight incontinence after birth. You must know that.”

Lucile chuckled, “Well, diapers will come in handy, then.”

“Don’t laugh. It’s not funny.”

“No more talk,” said Lucile, towering over her sister, “The experiment won’t work unless you get into character. So, from now on, you either get this,” she paused, showing a pacifier, “Or your thumb on your mouth. If I ever see you without either, you’ll be spanked. Understood?”

Elle thought about complaining, but she thought it better. She had never been able to stand against her younger sister, and she felt sorry because Lucile was actually doing all of this to help her.

So she nodded.

“Bathroom is off limits,” said Lucile, grabbing Elle by the hand and placing her carefully over the bed, “So it’s diapers for you until the end of the weekend.”

Elle looked away as her sister diapered her. She had worn them before after giving birth, albeit none as childish as the one Lucile had just put her on. She blushed quite red when Lucile spread baby powder over her private parts, and then again when she taped the diaper, trapping her crotch in the fluffy prison. Finally, Elle was dressed in a onesie that resembled something her year-and-a-half daughter would wear.

“Last rule. What mommy says,” said Lucile, helping Elle stand up, “What mommy says goes. No complaints. If not, well, you know.”

Elle nodded.

There was a short moment of silence as Lucile scanned her older sister. She must have been pleased with herself because she smiled as she did. Without hesitation and with an overpowering grip, she took Elle in front of a mirror and forced her to see her own reflection.

And that made Elle start to sob.

“It’s okay. Mommy’s here.”

What Elle saw in the reflection wasn’t her. It couldn’t be. Staring right back at her wasn’t an adult. It wasn’t a mother. It was a little girl, a rather tall one. Her pink onesie did barely anything to hide her diaper. And compared to her younger sister, who was still naked and standing next to her, Elle felt like such a small being.

“Shall we start the weekend?” asked Lucile, grabbing her sister’s hand.

Elle nodded.