Wiktionary
n. A type of fan fiction featuring celebrity and other real people, particularly actors, musicians, and athletes.
Wikipedia
Real person fiction or real people fiction (RPF) is a genre of writing similar to fan fiction, but featuring celebrities or other real people. In the past, terms such as actorfic were used to distinguish such stories from those based on fictional characters from movies or television series.
Before the term "real person fiction" (or "real people fiction") came into common usage, fans came up with a variety of terms, which are still used for specific genres or cultural practices in the RPF community; for example, musicfic, popslash, or actorfic. The genre includes stories about actors, athletes, comedians, historical figures, musicians, newsworthy people, and reality show contestants among others, as well as fiction about the fans themselves.