How about 'Sis and Bro's Ride'?
One possible title is 'The Unacceptable Sibling Encounter'. It gives the idea that something has occurred between the sister and brother that is not acceptable in society.
Well, here's a story. A sister and her brother were riding to a local fair. The sister was excited to see the various handicrafts and food stalls. The brother was more interested in the old - fashioned games there. They rode on their bikes, enjoying the fresh air and the scenery of the small town on the way. They shared stories about their school friends and had a great time at the fair.
Sure, 'Sis - Bro Ride Tale' could work.
It could be about a sister who encourages her brother to go to school every day. Maybe the brother is a bit lazy or has some problems at school, like being bullied. And the sister gives him the courage and support to keep going to school.
Maybe 'The Big - Booty Sister's Adventure'.
One possible story could be that in the darkness, the brother and sister might mistake a stranger for each other. For example, they hear a noise and think it's the other one, but it turns out to be someone else who has entered their house by mistake. This could lead to a series of events where they initially react as if it's their sibling and then realize their mistake.
Well, perhaps the sister is really into fashion and wants to experiment with different looks on someone, and her brother is the most accessible model. Or she could be preparing for a school play or a local theater production where she needs to practice dressing a male as a female character. Maybe she just wants to break the gender norms in a fun and harmless way within the family environment. It could also be that she's trying to teach her brother about empathy towards the opposite gender by making him experience what it's like to be dressed as a girl for a while.
It could be a story about siblings observing another girl in the pool. Maybe she is a friend, and they are just watching her swim or have fun in the pool.
One reason could be that the little brother has been disobedient. For instance, if he was told not to play with a certain dangerous item but did it anyway. Another reason might be that he has been unkind to others, like bullying a younger sibling or a neighbor kid, and the sister feels it's her responsibility to correct his behavior.
A vore story in this context could be a very strange and likely disturbing fictional tale. But if we look at it in a non - literal, perhaps metaphorical sense, it could be about a family where a brother or sister has a very over - powering or 'consuming' personality that overshadows the others in the family.