Based on 'Sweater Song' by Hedley and prompted by Patricia Sage :D

"Blaine, I don't want you to go." He sighs.
"I know, honey, but I have to. It's only for a few weeks – I'll be back before you know it. If you keep pouting like that, I may have to do something about it…"
"Don't make empty promises," you say in the same sulky voice, but with a twinkle of mischief in your eyes. He kisses you chastely.
"Come on, now, or I'll be late."
"Okay, one thing first." He raises his eyebrows. "I'm sure there are lots of attractive men in … wherever you're going … but I don't want you to get any ideas, you hear me? No flirting." He rolls his eyes, chuckling indulgently. "And please be careful – I want you coming back to me in one, fully functioning piece, okay?" He nods, more serious now. "And lastly …" you blush, dropping your eyes from where they'd been holding his. "And lastly, here," you say, quickly stripping off you shirt and pressing it into his hands. "In case you feel lonely," you mutter. He steps forward, slotting his head under your chin and nuzzling into your neck.
"Thank you," he whispers against your skin. Stepping back again, he turns, reaching into his bag for something. "I know how you hate the weather here, so maybe you should hold onto my sweater," he says, pulling out his charcoal-grey Aran knit sweater. You clutch it to your bare skin, shivering. It smells like him.
"I love you."
"I love you too."

The ringing of the phone catches you off guard, but as soon as you hear it you're dashing across to it, snatching it from the receiver and holding it breathlessly to your ear. "Blaine, Blaine, I miss you, come back home," tumbles out of your mouth before you're even certain it's him on the other end. There's a pause. You hear a breath. It's him.
"I hate this place. I miss your smile, I miss your face."
"I feel better already just hearing your voice. I just mailed you a letter, by the way. I hope it gets to you in time. Oh, and just so you know, I'm still in your sweater."
"Kurt, honey, don't be upset … I sweat a lot and smell of dirt, but I think I'd feel naked without your shirt – I'll wash it for you when I get back, I promise."
"Dry clean it, thank you very much," you say, mock annoyed, "… I love you."
"I love you too."

The sound of a key in the door has you up on your feet and running, and you're in his arms before you even realise that it's four days early and he shouldn't be here, but he is he is he is. He worms his way out of your grasp, holding you at arm's length.
"You're looking great," he blushes. "I'm home, I'm back – I couldn't wait. Too long, Kurt, that was way too long."
"Get over here," you say, pulling him back towards you, "I crave you close, I need you near." You hold him for a while that feels like forever and a single second all at once. You breathe him in – he smells so much better than his old sweater which smells more of you than him.
"I love you."
"I love you too."
"… Now all I want to do is get you out of that sweater," he says with a wink.
"Mmm," you respond, just as deviously, "let me see you naked without that shirt."

I hope you liked it!
xx