In this 'Scene' Capper and Captain Celaeno inconvieniently arrive at the same place in the Storm King's palace so they take advantage of this moment to bond (metaphorically) by kicking Storm Creature and Decepticon arse while the song "Versace on the floor" by Bruno Mars plays in the background.
They both broke some sweat and became more attached to each other in this moment, which is why they're both sweating and blushing. Sorry potential Capperity shippers.