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English
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2025-12-19
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Isa x Mira

Summary:

If you have any criticism or advice on how to improve my fanfics, feel free to tell me! I'm not very good at it, but I really enjoy reading fanfiction from other creators.

Work Text:

Mirabel always wandered through the courtyards and corridors of the Casita, seemingly unconsciously hoping to be useful to someone in the family. In those days when Abuela was always so strict with everyone, always saying that each person should do their part to help, Mirabel even felt relieved when she didn't find her, because that way she wouldn't have to hear her saying that she didn't need her help.

Mirabel always watched her sisters and cousins from far away, admiring and envying them. She didn't wish them harm, but she felt excluded. One day, during her walks, Mirabel saw her sister Isabela enter a room that wasn't hers. Of course, this wasn't unusual, she was a resident of that house. But Mirabel had this flaw of always wanting to meddle where she wasn't wanted, always wanting to be useful.
She crept through the hallways until she reached the door of the room where Isabela was.
Without knocking, she opened the door and found her older sister lying on the bed with her breasts exposed. They were very full and beautiful, their brown color glistening in the small gleam of sunlight coming through the door. Mirabel slowly approached her sister, without even closing the door behind her.
Mira was anxious about the situation, doubting that she was really doing it, going to see her sister, who was naked and vulnerable at that moment.

But at that moment, seeing her sister's breasts, her mind completely calmed down and she only thought about one thing.
She looked at Isa's face and breasts for a long time. Wanting to touch them, she placed her hand on her sister, leaving only a few centimeters of distance. She ran her fingers over the most sensitive part of her sister's breasts, which caused the pupils of Isa's closed eyes to move slightly, making Mirabel realize what was happening there. Isa had put herself in this situation, she knew that someone would enter this room and find her like that. That's what she wanted, no one would find something like that about her, but Mirabel no longer had any doubts.

"I already understand, Isa. You wanted someone from the family to come in here and see you in this state ". Mira then began breathing on her sister's breasts and kissing them, until she reached a point where she used her lips to suckle like a baby for a few minutes.
Even if someone thought you did it on purpose, no one would doubt the perfect daughter, much less think she would be a pervert..."
Mirabel, using her nails, forcefully gripped Isa's nipple, pulling it up and licking it. And Isa, with an expression that clearly showed she was being affected by it, held her hand while slightly opening her eyes.
"Mira, don't be so mean to me..."
She turned her face towards Mira, like a puppy wanting affection. She held Mira's hand, resting it on her body. Mira could no longer resist the temptation and kissed her lips while continuing to hold Isa's chest with a full hand.
"I was waiting for Camilo to show up, but you're even cuter than him Mirabel... " said Isa looking like she was drunk and with so much pleasure in being able to kiss Mira.

Mirabel was in a trance of pleasure and confusion, it was the first time she had this type of interaction with someone, especially her older sister, she continued kissing her sister, while squeezing her full and smooth breasts, but then she glanced at the still open door, making her come to her senses.

Mira stopped the touches and got up from the bed and slowly walked to the door.
" we shouldn't Isa, what would the family think if they find out? ".

Isa got dressed and slowly walked towards Mira and the door, and closing the door while looking at Mira's eyes.
" in that case we should just never let them find out and keep having our fun forever ".

Isa then knelt in front of Mira, putting her hair in a ponytail, pulled down Mirabel's long skirt with her hands, and with her mouth grabbed Mira's panties, pushing her back onto the bed and tearing them with her teeth, leaving Mira surprised by the violent act, which was unusual for Isa to do. Removing Mira's shirt, while looking at her developing breasts, which were almost half the size of her own, she became uncontrollable and, using her hands and mouth, ran all over her younger sister's body, leaving her moaning, and then finishing with,

"This is our secret, understand that in this family, this is how you get by."