Summary: L's breath smells bad.
.o
"Light-kun, I want another one."
"Hell no."
The older man leaned in closer, which caused Light to turn away in response.
"If you want another one, you'll have to give up your commitment to sugar."
L couldn't help but whine, as the burden of giving up the source that fueled him in order to kiss Light was hard to ask of him.
"But I brush my teeth every day, Light-kun," he tried.
"You're smart enough to know that diets high in sugar will cause your breath to smell bad even if you brush every day," Light responded, pushing L away gently. "It stinks even right now."
L thought. "But if I brush after every single time I eat, then we'll get nothing done. I'll be spending all my time brushing."
The brunette snorted in response. "Then maybe consider having normal meal times like the rest of us normal humans instead of grazing throughout the day."
"Light-kun drives a hard bargain."
.o
"Light-kun."
"Stop, I'm trying to sleep and I know you're eating cake."
"You haven't even tried to smell my breath yet." The detective's voice was getting closer.
"I'm not interested."
Suddenly, he smelled a strong mint scent.
"What is that? I've never seen you eat anything mint-flavoured."
"It's gum—the solution to all of my dental hygiene problems." Light could hear the grin through L's voice. He turned in the bed just enough to see L, true to his word, chewing away.
"I swear, you have an oral fixation." Light rolled his eyes and moved to lay back on his side.
"Can I have one now?"
Light sighed. "Fine." He flopped himself over and let L have his kiss.
He was surprised to find it wasn't as unpleasant as the first kiss, which was soured by not only the awful smell of sugar being digested by bacteria for fifteen hours in L's mouth, but also the gross taste of said sugar caking every surface of his teeth. Since having chewed the gum, it seemed to have pulled a lot of that sugar grit off of the detective's teeth, leaving smooth teeth to explore. Why he decided to trust the detective to French kiss him again, he's not sure, but he wasn't kicking himself for it this time.
Suddenly, he felt L transferring the piece of gum he'd been chewing into his mouth. He yanked himself backwards, spitting out the chewed rubber onto the bed. L frowned.
"What the hell?!"
L glared at Light. "I was attempting to dispose of the gum so that I could get back to eating, but you decided to make a mess."
"Fuck off, I'm not a trash can," Light grunted, and turned to face toward the wall so hopefully he'd get some sleep tonight.
L sighed, staring at the chain between them. At least he now knew kissing was no longer off the table as long as gum was around.