She might be a new acquaintance. The brother and sister could have met her at the pool recently. Maybe she has some unique swimming gear or a different style of swimming that has caught their attention, so they are watching her in the pool.
She could be their neighbor. Maybe they are all at a community pool and the brother and sister are just casually watching their neighbor swim.
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.
Once upon a time, there were a brother and a sister. They went to the pool on a sunny day. The sister was excited to swim and the brother was more interested in just sitting by the pool and reading a book. The sister jumped into the water and started splashing around, trying to get her brother to join her. Eventually, the brother put down his book and dipped his feet in the pool, and they had a great time just chatting and enjoying the sunshine by the pool.
One activity they can do is play water volleyball. They can set up a net across the pool and hit a beach ball back and forth. It's a fun and active game that requires teamwork and can also keep them cool in the water.
One game could be a pool - tag. The brother and sister can take turns being 'it' and chase each other around the pool. Another is a water - balloon toss but in the pool. They can stand a short distance apart and toss the water - balloons to each other without dropping them. Also, a synchronized swimming competition, where they can make up simple routines and show them off to their friends.
At the pool party, the brother and sister had planned various activities. The sister made some delicious lemonade for everyone. The brother set up a floating obstacle course in the pool. Their friends were eager to try it. The sister went first to show how it was done. She had a bit of trouble but managed to complete it with everyone cheering her on. Then the brother and his friends took turns, and it was a day filled with joy, laughter and lots of pool - related fun.
We can rewrite the situation completely. The sister is in a large hall (not a 'glory hole') that has many interesting things to look at. The brother is watching her as she moves around the hall, looking at the paintings on the wall, the sculptures, etc. The sister is in awe of the beauty around her, and the brother is there, observing her reactions with a smile on his face.
The phrase 'glory hole' is rather inappropriate, so if we assume it's a made - up or misnamed place in a story. Maybe it could be a story where the sister is in a special place (not a 'glory hole' in the inappropriate sense) and the brother is watching her. For example, the sister is in an attic full of old treasures and the brother is watching her explore with a sense of curiosity and protectiveness.
No, it is not ethical at all. Blackmail in any form within a family relationship is wrong. It violates the trust and respect that should exist among family members. In a healthy family environment, siblings should support and care for each other rather than engage in such unethical behavior.
In some cultures, cross - dressing in a non - offensive, family - oriented way might be seen as humorous. For instance, during a family party where everyone is dressing up in different costumes. If the sister dresses her brother as a girl just for a laugh and the brother is also in on the joke, it's all in good fun. However, we should also respect everyone's gender identity and make sure no one feels uncomfortable.
She can help him find lost things, like in the case where she looks for his toy in the park.