Chris Evans and Chris Pratt Make Super Bowl Bet [Updated]

Marvel
Let it be known throughout the galaxies: Captain America and Star-Lord are not BFFs—at least not until after the Super Bowl.
The upcoming battle between the Pats and the Seattle Seahawks has brought about a fun little Twitter exchange between actors Chris Evans and Chris Pratt, who play the two superhero team leaders in the popular Marvel films. Evans plays Captain America from the Avengers, and Pratt plays Star-Lord from Guardians of the Galaxy.
Evans, a Sudbury native and Pats fan, tweeted at Pratt after the AFC Championship, “Well, well, well @prattprattpratt, looks like our teams are going into battle. For the next 2 weeks, you are not my friend, you are my enemy.”
https://twitter.com/ChrisEvans/status/557276465926926337
Pratt, who was at the NFC Championship game rooting for his Seahawks, has since responded, “@ChrisEvans We both know there’s only one Captain America and his name is Russell Wilson. #SuperBowlBound #LOB #Repeat.”
@ChrisEvans We both know there's only one Captain America and his name is Russell Wilson. #SuperBowlBound #LOB #Repeat
— Chris Pratt (@prattprattpratt) January 19, 2015
Replies from other tweeters include “OMFG BURN” and “SHIT JUST GOT REAL.”
https://twitter.com/ChrisEvans/status/557285381012328449
The two superhero actors made it official Wednesday after agreeing to the following friendly wager:
If the Seahawks win, Evans must go to Seattle Children’s Hospital dressed as Captain America while waving around the 12th man flag.
If the Patriots win, Pratt must dress up as Star-Lord while wearing a Tom Brady jersey and visit Christopher’s Haven, a Boston nonprofit that provides housing for pediatric cancer patients and their families.
@ChrisEvans OK. Seahawks win you fly yourself to Seattle, visit @seattlechildren hospital as Captain America, waving the 12th man flag.
— Chris Pratt (@prattprattpratt) January 21, 2015
https://twitter.com/ChrisEvans/status/557969567671017473
For Marvel fans, the friendly rivalry is as close as we’ll get in the near future to a Avengers–Guardians of the Galaxy crossover. There are no losers in a bet like this one, but of course we hope Captain America gets his way come February 1.
Besides, as Tony Stark would say, “We have a Hulk”:
Regardless of how the Super Bowl plays out, Pratt will be in town February 6 to celebrate his designation as Hasty Pudding’s Man of the Year. The Parks and Rec star will headline a parade through Cambridge before his celebratory roast at Farkas Hall at Harvard.
Somewhere on Asgard, Thor/the sexiest Chris Hemsworth is still very confused by all of this.
Update, January 21, 2 p.m.: Updated with terms of Super Bowl bet.