Kurt was not a fan of the Soda Stream machine. Blaine had been up late one night and saw an infomercial about it and announced that he wanted to get one. Kurt felt like they already limited counter space and didn't need another random appliance, but Blaine was so sure that it was going to be great that he relented. Once it arrived, however, he quickly found the noise it made irritating and the mess of cups and accessories all over the counter to be quite an eyesore.
Kurt quickly grew disinterested in having a new randomly-flavored soda with every meal and Rachel had a new no-carbonation rule, so Blaine anxiously awaited chances for visitors to come over, which aside from his own use was the only excuse he really had to use it. They agreed that it was Blaine's machine, so it was his responsibility to clean it and put away the bottles and other accessories away when it wasn't in use.
Blaine was usually pretty good about doing his chores around the loft. Rachel and Kurt were often at odds because there were certain chores she hated and was always making excuses to get out of. But Blaine's family had been pretty stringent about chores growing up so, while he didn't particularly enjoy them he was in a habit of having to do them. Usually he was pretty good about taking his turn for the dishes without being reminded, for instance. It had become his habit though, to experiment with a couple of different soda flavors when he got home from school. He'd turn on the TV while he was making them, and quickly became distracted by that or whoever he started talking to, and cleaning up the leftover cups and putting away the soda flavor bottles would slip his mind.
"You can't just leave this stuff all over the counter!" Kurt told him one day when he came home with groceries and there was no space to lay them down.
"Oh. Sorry. I guess I forgot last night." Blaine apologized, sheepishly opening the cabinet to put everything away.
"It's your machine; I hardly even use it. It's your responsibility to clean up when you're done." Kurt lectured.
"Okay. I'm putting it away!" Blaine defended.
Kurt pursed his lips, unimpressed with Blaine's tone. "Young man, if we have a problem with you remembering your chores you know I have ways of reminding you."
Blaine froze at the "young man" talk. He didn't think this was that big of a deal. But arguing that point was unlikely to get him very far.
"I- um… yes sir." he responded in a meek voice, making a point of washing off the counter extra well.
That weekend Kurt was taking a nap on the couch after having overdone it with back to back shifts at the diner the night before. He groggily woke up to the sounds of the soda stream machine bubbling up over and over again as Blaine and Sam were talking and trying out new flavors.
"Can you keep it down?" he asked, exasperated.
"Oh sorry, Kurt."
"That thing is so annoying." Kurt muttered, laying back down.
"We've almost tried every flavor!" Sam announced.
"Awesome." Kurt replied sarcastically, rolling his eyes and then trying to fall back asleep.
He was nonplussed when he woke up an hour later to find them both gone and the remnants of all their experimenting, this time all over the kitchen table as well as the counter. He took out his phone and took a picture of the mess and texted it to Blaine without comment. A moment later Blaine responded.
Sorry. Down the street getting cronuts with Sam. Will be back in 10. Will clean it all up.
Kurt shook his head. He needed an aspirin.
Not ten, but thirty minutes later, Blaine returned with a litany of excuses. Kurt wasn't interested in any of them, and turned him to his side, administering three good swats to his behind in response. "Leave a mess like this again and you'll be feeling that and more on your bare bottom young man," he sternly warned his wincing fiancé. "Understand?"