In this story, the sister might have a bet with her friends that she can turn her brother into a baby girl. So she uses all kinds of tactics. She might first convince him by offering some kind of reward. Then she gets him into girl - like clothes, teaches him how to walk and talk like a girl. This could lead to a series of funny and chaotic situations as the brother tries to adapt to this new role while also dealing with his own sense of identity.
The sister could be jealous of all the attention the brother gets. So, in order to get back at him, she decides to force him to be a baby girl. She could start by changing his hairstyle to a more feminine one, like putting bows in his hair. Then she might make him act like a baby girl in front of their parents or friends to embarrass him.
The brother could be really angry at first. He might resist and try to run away from his sister when she starts her plan to turn him into a baby girl.
I'm not sure specifically what 'baby girl by force story' refers to as it's a rather unclear title. It could potentially be about a situation where a baby girl is involved in some sort of forced action, like being forced into a particular situation, but without more context it's hard to say exactly.
In a family with a lot of siblings, they decide to put on a show for their parents. One of the brothers is dressed as a baby girl. He is initially against it but then realizes he can use this opportunity to prank his parents. He acts overly cute and girly, and his parents are completely fooled at first. Then he reveals the truth and they all have a good laugh. Along the way, he also realizes that there's no harm in looking different and that family fun is more important than adhering to traditional gender appearances.
It could be about a character who is forced by some circumstances like a family tradition or a magic spell to act and live as a baby girl. Maybe it's a boy who has to pretend to be a baby girl for a play but then gets stuck in that role in an unexpected way.
It could be a story where by mistake, the brother and sister are involved in a situation like getting mixed up in an inheritance. For example, the sister might be mistaken for the brother in terms of receiving some family heirloom that was meant for the male heir.
It could be a story where the brother mistakes his sister's intentions. Maybe he thought she took his things when in fact she was just borrowing them for a short while.
It could be about a secret adventure they share. Maybe they discovered a hidden treasure in their backyard and are keeping it a secret from their parents.
One reason could be for fun. Sisters might think it's really funny to see their brother in a different, girly look. Another reason could be out of curiosity. They want to see how their brother would look like as a girl, like an experiment. Maybe she also wants to play a prank on him or on their family and friends.
She might be doing it for a play or a performance. Maybe they were planning to put on a show for their family or friends and this was part of the act. Another possibility is that she was simply curious to see how he would look like as a girl.
One reason could be for fun. Sisters often like to play around and dressing someone as a baby girl can be a form of humorous play. Another reason might be for a creative project, like making a home video or a photo shoot. Or perhaps she misses having a baby sister and wants to recreate that feeling.