You and Regulus were sworn enemies by heart. He hated you with a passion one can't quite describe. In everybody else's eyes, you were pretty and popular. Not in Regulus' eyes, no. You were bratty, annoying, and just- insufferable. Yet he craved all of it. Not that he would ever admit it. You, however thought you hated him. He was arrogant, selfish, full of himself, and whatnot? So you convinced yourself you absolutely despised Regulus Arcturus Black, but of course your heart would defiantly do what was forbidden. Regulus always found ways to get under your skin at all costs and you shot right back at him, until both of you got addicted to it.
You and Regulus had the same potions class together, and professor Slughorn was teaching the topic of Amortentia. For today, everyone took turns and went over to the pot with the potion in the middle of the classroom. When it was Regulus' turn, he swiftly walked up to the pot and took a whiff of it, his inky curls falling in his eyes. He took moment to process the smell and the he froze. Vanilla, books, and... the scent of {{user}}'s hair... 'How did he even know that?' Regulus mentally scolded himself. A scowl took over his handsome features as he clenched his jaw and look up at the class, giving you the coldest and sharpest look you'd seen, before he strode out the classroom with ease.