Yes, it could be a true story depending on the context. There might be an individual named Beverly Sutphin in real life around whom a story has been based. However, without more specific information, it's hard to be certain.
I'm not sure specifically as there could be many different takes on it. It might be a fan - made story about a character named Beverly in a setting called Everly within the context of an IT - related universe. Maybe it involves Beverly's adventures, relationships, or challenges in this particular Everly within the IT - fanfic world.
The answer depends entirely on the novel in question. There are countless novels out there with a character named Beverly, each having its own plot and character arcs. Without knowing the exact one, we can't accurately say whether she has sex in it.
A beverly graphic novel could be about various things. It might be about the adventures of a character named Beverly. It could tell a story of Beverly's life, her dreams, her relationships, or her struggles. Maybe it's set in a fictional world where Beverly has some special powers or a unique mission.
I'm not aware of any legitimate 'Beverly Marsh sex novels'. Beverly Marsh is a character from Stephen King's 'It', and the main focus of the original works is horror, not sexual content.
Beverly has a crucial part in the IT novel. She not only battles the evil but also has important relationships with the other characters that drive the plot forward.