For the most part, Kurt Hummel is clumsy.
Even after growing into his long limbs, he still often found himself tripping over his own feet or a stray sock or even just the air. His friends tease him good naturedly and Blaine is there to catch him when he stumbles or to help him when he hurts himself. He laughs it off for the most part, comfortable in his body now more than he ever has been. No amount of dance classes will cure him of it; plus, its kind of funny at times.
But Blaine thinks Kurt just has a special kind of grace, one that only shows when he isnt consciously thinking about the way his body moves. It shows in the way his legs move to the beat of the Christmas music playing in the background, the way he stirs the batter of the cookies they baking, the way he dances around the kitchen, putting dough on trays, pulling cookies out of the oven. The smallest things that make Blaine stop what hes doing to just stare.
And Kurt will catch him staring. Blaine doesnt stop, just gives him a smile that make Kurts cheeks pink and his eyes cast downwards, no longer dancing, but still moving with grace around the kitchen, playfully telling Blaine to get back to work. Blaine will, but not before he steals a kiss that has Kurt biting his lip to try to contain his smile.