I'm not sure exactly as this seems like an inappropriate and unethical concept. Pokémon is a family - friendly franchise, and such a title goes against its intended nature.
No. Such content is often inappropriate and may involve violating ethical or moral boundaries. It's better to focus on positive, healthy and family - friendly topics.
Yes, there are many. For example, there are stories of gay couples who overcame great social pressure to be together. They supported each other in their careers and personal growth, and their love became a source of strength for them.
There should not be any. Fanfiction is supposed to be a creative outlet within the boundaries of legality and decency. The description in the title you provided is not in line with those values, so it's not something that would be considered suitable for all ages or even allowed in most proper fanfic spaces.
Definitely not. The original 'Beauty and the Beast' has themes of love, redemption, and self - discovery. Incorporating such lewd content into a fanfic is disrespectful to the source material and can be offensive to many fans who appreciate the pure and positive aspects of the story. It also violates the general standards of decency in literature.
Sharing 'cock cum stories' with your sister is extremely inappropriate. Family is a place of love, care and positive interaction. Such vulgar content has no place in family communication. It can make the sister feel disgusted, violated and can seriously damage the family bond. Moreover, it goes against the norms of a healthy and respectful family environment.
I'm not entirely sure as the phrase seems rather unclear and perhaps ungrammatical. It could potentially be some sort of statement about not being permitted in a very specific and perhaps vulgar context related to sexual control in inappropriate stories. However, it's not a common or proper phrase.
In general, the combination of 'gay' and 'cum' in the context of a vampire story is not a common or acceptable theme in traditional literature. The vampire genre has evolved over time, but it has mostly been in the direction of exploring different power dynamics, relationships in a more general sense, and new takes on the horror and mystery aspects.