Hello, anon, and thank you for the question.
This topic has been studied by by researchers for years. There are three prevailing theories that I will relay to you now.
1. It keeps him on the ground.
You may notice in the gif above that Chris’ leg starts to rise as he laughs, possibly a precursor to his entire body undergoing a sort of lift off due to his joy. Chris then employs his upper body strength to force himself to obey the laws of gravity.
2. To check on his physique.
As you may be aware, anon, it takes a lot of hard work to maintain a superhero body. Chris is concerned that in the time he has spent sitting down, sans working out or eating, he has lost muscle mass. Understandably, he feels the need to make sure that he is still a specimen.
3. Object permanence.
Object permanence is a term applied to the understanding that an object still exists even when you cannot see it. Chris closes his eyes when he laughs, making him unable to see that he has not disappeared. By grabbing his left boob, Chris knows that he has not somehow ceased to exist.
I hope this helps.
A truly unstoppable force.
man, it is hard to believe that jenna and jon are not madly in love when there is so much evidence. I mean just watch any of the office commentaries with both of them! It will cause you to melt into a puddle and cry…and i refuse to ship real life people man…but jenna and jon 5ever …
Queen Margaery - breaker of awkward moments.
I’m so much more lenient on Game of Thrones than most people who have read the books, probably because I started watching the show first and I don’t have too much trouble separating them in my head, but that Jaime/Cersei scene was a straight-up abomination, and I really can’t understand why they would film/write it that way.
Also I’ve seen a lot of comparisons to the Dany/Drogo wedding night scene, and while I don’t necessarily agree with that because I think that was a realistic and smart change from the books (13 year olds who were sold to their husbands are not capable of giving consent and GRRM has expressed regret over trying to frame it in a tender manner rather than telling it like it would actually be), it does fall in line with the show runners’ horrible pattern of adding non-book-canon sexual violence against women for non-justifiable reasons.