Here is a concise summary of the provided text:
**Title:** The Embarrass Each Other Challenge
**Format:** Two friends, Ethan and Grayson, take turns sharing embarrassing stories about each other.
**Rules:**
* Each tells 3 stories about the other.
* The listener can stop the story to avoid embarrassment, but doing so earns them a "Loss" (L) and no point.
* If the story is told in full, the listener gets a point.
* The person with the most points wins.
**Summary of Outcomes:**
* Round 1: Grayson shares an embarrassing story about Ethan's childhood song lyrics (Ethan loses).
* Round 2: Ethan reveals Grayson's past as "Ken" to his girlfriend's "Barbie" for Halloween, and also shares a secret nickname "ET" (Grayson loses).
* Rounds 3 & 4: Both share embarrassing stories, with Grayson singing and Ethan attempting a backflip but failing (both embarrassing moments, but Grayson's story-telling earns him the win in one of the rounds).
**Final Result:**
Grayson wins the challenge, earning the right to:
1. Change Ethan's Twitter profile picture to an embarrassing photo.
2. Have Ethan jump into a pool with all his clothes on (depicted at the end).
Here are the key facts extracted from the text, each with a number and in short sentences:
1. The video is titled "The Embarrass Each Other Challenge".
2. Two individuals, Grayson and Ethan, are participating in the challenge.
3. The challenge involves telling three embarrassing stories about each other.
4. If a person lets the other tell the entire embarrassing story, they receive one point.
5. If a person stops the other from telling the story, they get a "big fat L" (loss).
6. The person who withstands the most embarrassment wins.
7. The loser has to jump into a pool with all their clothes on.
8. The winner gets to change the loser's Twitter profile picture to something embarrassing.
**Specific Embarrassing Story Facts**
9. Ethan wrote song lyrics in second grade, which Grayson shared.
10. Ethan's nickname, given by his mom, is "ET Vici".
11. Grayson dressed up as Ken from Barbie for Halloween with an ex-girlfriend.
12. Grayson sang a song, which Ethan was going to share, but didn't (initially).
13. Ethan wrote a song, which Grayson shared in the final round.
14. Grayson attempted a standing backflip at a family party, yelled, and landed on his head.
**Challenge Outcome**
15. The challenge ended with the participants tied before the final round.
16. Grayson won the final round, sharing an embarrassing story about Ethan's song.
17. However, the overall winner was not clearly stated in the provided text, but later implied to be Grayson.
18. Grayson changed Ethan's Twitter profile picture as part of his win.