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Izuku enjoyed every moment he spent with Katsuki, but nothing, nothing, more than Katsuki's famous cuddles on the couch. Oh, how their cuddles were especially the best when mother nature fucked the weather up.
Curled up on the dorm couch,—damned legs and arms tangled— was a lazy mess of a makeout. Dry and lazy lips against Izuku's neck, continuously dragging to Izuku's poor mouth and back down and back up. The soft and gentle hands running through the blonde's hair, Izuku's lidded and tired eyes— well damn, Katsuki's lucky as fuck.
And the constant, small, yet affectionate, nips on Izuku's neck made his fingertips tingle; pressing them to the back of the blonde's head, scratching against his scalp softly. The pitter-pattering of the rain hitting the window accompanied the soft and gentle moans that escaped Izuku's mouth each time he felt Katsuki's lips on his neck or a tongue lapping over his bottom lip.
Izuku swears his heart dissolves every-fucking-time when he hears Katsuki's murmurs of subtle praises— "Oh, I love you" - "You're so perfect in every way" - "Your freckles are so pretty" — Izuku can't help but internally squeal.
(With Katsuki wrapped around Izuku like a huge and lazy, koala, and Izuku's arms wrapped around Katsuki tightly and his legs wrapped around the blonde's ass, they have achieved the human-ball award.)
And eventually, when Katsuki stops his affection and goes to rests his head on Izuku's shoulder, Izuku can't help but run one of his hands up the spikey-haired boy's hoodie-with-no-shirt-underneath; rubbing circles on his back, the other hand playing with the messy blonde hair. The thunder and rain in the background and Katsuki's slow breathing— and soon to be quiet snores— were the only things Izuku could focus on, soon drifting off to sleep.