Definitely not. In a relationship, there are proper ways to please one's partner. This description involves vulgar and inappropriate content that goes against the norms of a healthy relationship. Partners should focus on building emotional connection, sharing common interests and supporting each other in a proper and respectful way.
They could have a mentor - mentee relationship. Batman, with his vast experience, could mentor Captain Marvel on things like stealth and detective work, which are Batman's specialties.
The idiom "occupy the bird's nest" is "occupy the magpie's nest". It means that someone has illegally invaded someone else's residence, occupied someone else's territory, or forcefully occupied someone else's property, causing adverse effects.
This was a poem from Bai Juyi of the Tang Dynasty,"Farewell to the Ancient Grass":"When I come out after a thousand calls, I still hold the pipa and half cover my face." It meant that despite being called out for a long time, he still had a half-covered expression on his face. This phrase is often used to describe a person who has finally achieved something after a lot of hard work, but his performance is still insufficient.
Well, Batman is known for his strategic mind and preparation. He might start by learning all about Captain Marvel's powers and weaknesses. Maybe he'd create a special place for Captain Marvel to rest and recover if he was injured. He could also use his detective skills to keep Captain Marvel's civilian identity safe from any threats.
Little Fish and Begonia's fans would send her all kinds of clothes to wear, and she would wear every set of clothes sent by her fans. To be specific, we have no way of knowing what the fans sent to Little Fish and Begonia.