I hate to say it but most erotic stories, even those by professional authors are extremely badly written. When it comes to amateur writing people who do it for a hobby often show their friends and families and invite their opinions, their friends say it's fabulous because they don't want to offend and the writer starts thinking they're actually a writer. If people do insist on writing amateur erotic fiction they should at least spell check it, there's nothing like a glaring spelling mistake to bring home the fact that it's by an amateur.