Can we allow a non-staffer to reply to its own whispered post?

Contribute Feature
6
  1. When a user creates a topic, it is approved by a moderator.
  2. After approval, the other users reply to that post or reply to a topic, which are also reviewed for moderation.
  3. Now, when a moderator/admin whispers to the post’s reply or topic’s reply, I’m using the toggle-whisper plugin, where the moderator can toggle a reply to a post or a reply to a topic to a whisper post.
  4. Now, here the admin/moderator or the user whose post is changed to whisper can see the post as a whisper.
  5. Now I want the user to be able to reply to a whisper post as the moderator/admins do.
    Can we achieve that?
    Basically i want to allow post author to see/reply to whisper posts