Collins Key and his brother Devin undertake a "Try Not to Laugh" challenge involving water in their mouths while watching a funny compilation. The video includes humorous moments, failed attempts not to laugh, and playful banter between the brothers. They discuss the possibility of a part 3 to the challenge and announce a giveaway. The video ends with Devin pouring water on Collins as a consequence of losing the challenge.
Sure, here are the key facts extracted from the text:
1. Collins Key is doing a "try not to laugh challenge" in part 2 of a video.
2. Collins Key's little brother is joining him in the challenge.
3. They are attempting a water version of the try not to laugh challenge.
4. They are watching a try not to laugh compilation with water in their mouths.
5. They mention the possibility of a part 3 of the challenge.
6. Collins Key is giving away an iPhone 7 and promoting the Live.me app.
7. They have live streams every Sunday at 4 p.m. PST.
8. The loser of the challenge will have a bucket of water dumped on them.
9. The video includes various humorous and unexpected moments.
These are the key factual points from the text without including any opinions.