Tony: I DON’T NEED KNEE PADS ON THE AMOUR WHAT ARE YOU THINKING STEVEN ROGERS!!ヽ(#`Д´)ノ
Steve: I am thinking how much I love you!!
(〃∀〃)Protective Boyfriend! Steeb is real worried that his sweetheart’s knees would be hurt from all those Superhero Landing™ pose. So knee pads!!
(And yes, that is the outfit from Lego Avengers, I might be too obsessed with that heart-patterned boxer too much sorry not sorry:D)

