[HP/Thor and Loki] Who Doesn't Have an Annoying Little Brother?

Characters:

Thor and Loki, from Marvel

Sirius and Regulus, from Harry Potter

(Sorry for using the tag.)

Note:

I recently watched Thor 1-3 and Avengers 1, and found Thor and Loki so adorable, haha, which inspired this dialogue-style story. The Black brothers are my beloved characters, but I'm not especially familiar with Marvel, so please go easy on me if I get anything wrong (hides behind a shield).

Theme: Who doesn't have an annoying little brother?