Does BJJ and other grappling variants have any studied impact on ability to last longer serious question

[BadboyBB]

My boy was wondering since he can’t stop himself from going gummy worm for more than 5 minutes but the second he starts getting a piggy back from any one and making skin to skin contact his shits immediately at full mast? Thoughts? Friends pic below does he rope?

 

[Epola]

wtf

 

[SanTheTrucel]

Is this a Humiliation ritual?