Which is why, when Blaine showed up to the shop on Thursday afternoon, he tried to approach his boyfriend without startling him. However, he was underneath a truck with some kind of drill whirring in his hands, so Blaine took a seat on one of the many stools littered around the room and took a seat. When the drill stopped, Kurt wheeled himself from underneath the truck and stood up, dusting himself off.

“Hey, Kurt,” Blaine greeted, and Kurt spun around quickly, started, and dropped the oil canister he’d been holding. It narrowly missed his foot, but the oil burst out of the can and sprayed the pair of them with it. Needless to say, Kurt Hummel was not pleased with Blaine that afternoon.

The two of them made their way silently to the small bathroom marked “Employees Only,” leaving the door open so they could fit comfortably. At least, Kurt was silent, but Blaine was trying to stifle laughter over the fact that Kurt looked absolutely adorable when he was pissed. He was ignoring the fact that his blazer reeked of oil and that there was a stain on it that would take ages to get out in favor of watching the way Kurt looked like he wanted to die or kill someone when he could feel the oil drip down from his hair to his face.

“Kurt,” Blaine started once they were inside the bathroom. Kurt held up a hand to silence him. “Oh, come on. Kurt, you can’t still be mad at me.”

“My hair, Blaine. My hair. You can’t just put anything in this, especially not engine oil. What were you thinking, sneaking up on me like that, Blaine? Jeez.” At this point, Blaine could no longer contain himself, and the silent laughter that he’d been shaking with spouted from his lips in all too real sound. And then it didn’t stop when he tried to open his mouth to speak. “What the hell is so funny?”

After a couple more moments of chucking and trying to contain himself, Blaine lifted a finger and pointed it right between Kurt’s eyes. “You are, silly. Don’t look at me like that, I’m explaining, okay?” Kurt huffed and checked his incredulous stare, choosing instead to fix Blaine with a look of blatant expectation. “I just, you always look so cute when you get flustered, and I’ve never seen you so mad before. I was just coming to surprise you and ask if you wanted to get coffee or something. But now we’re sitting here arguing over oil. It’s hilarious.” At this, Blaine deteriorated into another fit of giggles, unaware of the fact that Kurt was running his hand across his coveralls, picking up leftover oil, and then—

Thwack. Blaine jumped as the liquid hit him on the neck and cheek, eyes wide and Kurt started to laugh. Hard. He doubled over and had both hands on his knees as Blaine succeeded in only smearing the oil around his neck. Blaine raised an eyebrow and rolled his eyes as he watched Kurt’s demeanor change just like that from angry to playful. He turned to the sink and cut on the water.

The idea must have hit him at the same time it hit Kurt, because as soon as Blaine had his hands cupped to fill with warm water, Kurt was behind him, forcing his hands apart and the water to cascade down the drain. The moment Blaine could feel Kurt’s hips against his ass, he froze for a moment, basking in the warmth. He was sure Kurt must have felt it too, because his breathing softened.

Blaine made a sound from his throat and turned around to kiss Kurt, messes and oil forgotten. Kurt kissed him back and Blaine tugged him closer, fingers grabbing the fabric of the coveralls and clinging tight. The water continued to run behind them, but it was the last thing on Blaine’s mind. He kissed Kurt until he pulled away and could see where Kurt’s lips were fuller and bruised. Kurt was breathing heavy, and he was perfect like that, eyes half-lidded and trying to figure out what Blaine was going to do next, when he heard heavy footsteps falling.

Immediately, Blaine pulled away and turned back to the water, grabbing paper towels from the rack and soaking them before handing them to Kurt. He was just starting to rub against the stain on his blazer when Burt cleared his throat. Kurt spoke up for them. “Hi, dad. Blaine startled me and I dropped an oil can.” Blaine could feel Burt’s gaze on him for a moment longer before he nodded.

“Well, after you get cleaned up, you can go. Thanks for your help today, kid.” He turned and left, and Kurt tossed the soiled paper towel in the trash, fully intending to go back to kissing his boyfriend. Blaine sidestepped the attempt and wiped the oil from his neck.

“I’ll see you tomorrow, Kurt,” he said, pecking him on the cheek, and was gone without another word.