Work Text:
HMP fluff is when Niall finds it absolutely adorable when Harry has this confused look on his face, eyebrows furrowed and pink cherubic lips in a teensy pout when he rummages around his bag for his magically teleported pencil. Then he'd coo at him silently (man pride has its own rules between their relationship) and offer him one out of the hundreds he has in his little green pencil case (Harry gave it to him as a surprise since, you know, pencils). Harry would then, automatically, shower his face with butterfly kisses (Harry denies the fact that it makes him giggle, giggle goodness call it a chuckle atleast don't make me look like a pansy) and it'd make him blush and duck his head down. Niall's heart would then be clenching at just how atrociously cute he finds him and he ducks down to slip a lingering kiss at his unconsciously parted lips before he murmurs a small I love you, hot breath ghosting over Harry's mouth and Harry murmurs it back, shy grin spread out on his face and his eyes gleaming because he's in love, they're in love and he'd take pride over that fact and brag about it to every human being on the Earth if he could.
Domestic fluff is when Niall snorts and throws a pencil at Harry's—probably millionth—ridiculous pouting face (the one with tiger stripes, his absolute favorite because the lead's fit for writing calligraphy in the after Iife I tell ya) which makes him scowl and rub his forehead, where he's usually hit by the chewed up end that you'd never guess it once held a perfectly shaped neon green eraser. He'd then give Niall the finger cause you know, he's too nice then Niall would roll his eyes and effectively flicks it away cause his boyfriend's an absolute pansy and despite that blatantly obvious fact, he loves him, throughout the years and the cheerful ups and the bellyflipping downs and they just love each other so much, with the way they look at each other with fond written all over their faces and yeah, they're generally in love (just don't expect them to say anything about it).