Jennifer Aniston makes an appearance on The Ellen DeGeneres Show today, and the actress chats about everything from a possible Friends reunion to how beau Justin Theroux likes to scare her! And speaking of jumping out and scaring people, you have to watch the hilarious video above of Jen trying to catch Ellen off guard!

Ellen asked Jen, "Have you not ever scared anyone before? Don’t you like to scare? Don’t you hide when Justin comes home?" Jen revealed that he's the one doing it to her! "[H]e’s constantly hiding behind drapes," she says. "And I’m constantly scared. It’s like it doesn’t get old on me…" Aww, that's actually kinda cute!

As far as getting Rachel, Ross and the crew back together for a Friends reunion, Ellen joked that she would be responsible for organizing it, but Jen seemed rather doubtful about it. Check out the video below to see what she has to say...