How many models for many to many relations

I prefer to use one, and then have my Entity use the related model to get its relations. This will be rough bc I am mobile but something like:

PHP Code:

UserModel:: $returnType = 'App\Entities\User'

User::getPages(): Page[]
    return model(PageModel::class)->findForUser($this->id);

PageModel::findForUser(int $userId): Page[]
    return $this->select('pages.*')
        ->join('pages_users', 'pages.id = pages_users.id')
        ->where('user_id', $userId)
        ->findAll();