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“Hey, open your mouth a little.”
“Why?”
“Ugh, you talk back too much. C’mon. Open up.”
Shizue was still cradling her face, like she always did when they did their goodbye kiss. Shizue normally kissed her on the forehead, her cheekbone, maybe a peck on the lips if she was feeling particularly affectionate—none of which necessitated Mizuki opening her mouth. The question caught her off-guard, but it didn’t seem like Shizue was going to answer her.
So, she opened her mouth, and Shizue kissed her again.
Well, it was...probably a kiss? She wasn’t entirely sure. Their lips were touching, but more than anything, she felt her mama’s tongue. It was slimy, foreign to her, but...warm. Her mother’s eyes were closed, but she kept hers open until Shizue was done.
Mizuki licked her lips. She wasn’t sure why she did that. They tasted like her mother’s lip gloss.
“How was that?”
“I dunno,” Mizuki said, mumbling. “Why’d you do that?”
“You really do talk back too much.” Shizue picked up her purse, and Mizuki slung her bag over her shoulder. They were about to head out for work and school, respectively, when Shizue stopped to do...whatever she'd just done. "That was just a grown-up kiss. Haven't you seen it on TV?"
She...she had, when she thought about it. But wasn't there something weird about that? "But that's for couples, isn't it?"
"It's just a way of kissing someone who's special to you. You love me enough for me to be special to you, right?”
Mizuki huffed. Something felt wrong, but she didn’t know what, so she didn’t say anything. Besides, if she turned her mother down for something that adults were supposed to do, she'd never hear the end of it.
“Sure. You’re alright, I guess.”
Mizuki planned to sleep in her mother’s bed. This wasn’t abnormal, since they normally hung out there, watching movies or talking about nothing until one of them got too tired to carry on. Shizue liked to live in luxury, of course, so the bed was more than big enough for the both of them, and Mizuki happily took advantage of that whenever Shizue allowed her to. Tonight, she was simply too tired to go back to her room, so she didn’t; she was already in pajamas, since she’d anticipated this, and had been under her mother’s blankets since they’d started the show they were binge-watching.
Mizuki yawned, and Shizue teased, “Tapping out after the second season? It’s just getting good.”
“I’m not gonna remember any of it at this rate.”
“You don’t have to remember it. Live in the moment. Do you think I remember all of the shit we watch?”
“I’m going to sleep,” Mizuki declared, and Shizue groaned and switched the channel to the news. Mizuki wasn’t sure why her mother always slept with the news on; everything there was so depressing that it was likely to give her nightmares. Shizue smelled nice, though, so when Mizuki slept with her, she never had anything but nice dreams. Mizuki was ready to doze off as soon as she closed her eyes. “Turn the light off, please?”
“You’ve got some nerve, barging into my room then telling me what to do,” Shizue complained, but Mizuki saw the light go out through her closed eyelids. Shizue looped an arm around her shoulder, carding her fingers through Mizuki’s hair. “Don’t forget my goodnight kiss.”
“Spoiled,” Mizuki teased, then rolled onto her side to give her mother their standard goodnight kiss. She kissed Shizue on the corner of her mouth, seeking it out solely by memory and not by sight; she couldn’t even hold her eyes open. “‘Kay. Good night.”
“Don’t you wanna...do you wanna try that adult kiss I taught you about the other day?"
Mizuki's eyes shot open.
The bed felt hotter for some reason.
"I can try, but I don't really know how to do it." Mizuki hated sounding so childish, like she didn't know anything, but she hadn't been paying attention to what Shizue had done when they kissed the other day. She'd just kinda stood there, trying to figure out what exactly was happening.
"That's alright. Just do what I did," Shizue said, cradling Mizuki's hip. Her hand was under Mizuki's pajama top. Skin on skin. That wasn't abnormal, for her mother to touch her, but it felt some type of way, now. "Go ahead. You take the lead."
Mizuki swallowed. Shizue's gaze was soft, doting, yet still intense. Mizuki didn't know how to begin, but she knew that she wouldn't be able to if her mother kept looking at her like that. "Close your eyes."
Thankfully, Shizue didn't remark on that like Mizuki had expected her to. She closed her eyes, then sighed just loud enough for Mizuki to hear. Mizuki put her hand on her mother's hip, mirroring her, but found that she couldn't relax her hand. She couldn't relax at all. She was an adult, she'd been through more than enough to qualify her as one, but something about this terrified her. Still, she never backed down from a challenge.
And maybe adult kisses felt nice, too. That was a factor.
Mizuki started by kissing Shizue on the lips, letting herself linger a little longer than usual before pulling away. She saw her mother's lips turn up a little at the corners, as if to smirk at her, so she dove back in. This time, she opened her mouth first, her tongue poking out to touch her mother's bottom lip. Shizue parted her lips in turn, and Mizuki sought out her tongue again. It was kind of easy, actually. She just had to stop thinking, react on instinct, almost like she was in a fight. When her mother pulled away, she was breathless, her heart was racing, like she'd just got done with training.
"That wasn't hard," Mizuki said, more to herself than anything.
"Mm-hm." Her mother spoke absentmindedly. She was looking at Mizuki, but it was more like she was looking through her? Or like she was looking at her dinner. Something like that. "You're a quick learner. Mama's real proud."
"If you're just gonna make fun of me, I'm going to go sleep in my own room."
"I wasn't making fun of you," Shizue responded, and she was so sincere that Mizuki gave her another kiss as an apology.
Mizuki hated how much she'd had to learn from Shizue. She was already fifteen when she was adopted, but she and Kizuna lived a relatively sheltered life under Mr. Chieda's watch. So these "adult kisses" that Shizue had told her about—she'd shown her more than told her, actually—were a complete mystery to her. All she knew was that it was fun sometimes and that her Mama liked it when they did it and that you did it with special people.
How was she to know that she wasn't supposed to do it in front of others?
"I didn't expect you to know," Shizue corrected—too little, too late, since she'd already scolded Mizuki for trying to kiss her goodbye while Date was in the office with them. "But now you do know."
"What, are we not supposed to do it? Is that why people can't see?"
"We're not supposed to be doing a lot of things," Shizue said, vaguely. Still, Mizuki probably knew what she meant. Mostly. After all, she was a high schooler being trained as a lethal weapon for a top-secret government agency...what she was "supposed" to be doing didn't really matter. "But that's not the issue here. This one thing is better in private, though, y'know? It's just not the kind of thing you'd show other people. Unless...no, don't show anybody."
Mizuki felt a familiar bitterness rising up in her chest. She hated being treated like a kid just because she didn't know everything. Adults didn't even know everything. How was she supposed to? "Okay, whatever, I won't do it in front of people," she said, only because she didn't want to get talked down to any longer. "But Date's gone and your door is locked, so are you gonna kiss me before I go home, or what?"
"You could do with a better tone, I think."
"C'mon, I just—I like it, okay? And I'm used to it, and it feels good. So I want to do it. If you don't want to, then—"
"It feels good? How so?"
Mizuki felt like that question was dangerous. It had to be dangerous, because her body got hot when she heard it and she felt her cheeks tingle with a blush. But if that was what "dangerous" meant, then maybe adult kisses were dangerous, too? Maybe dangerous isn't bad?
"I'm not telling you."
Shizue laughed. The pompous kind of laugh that said I know something you don't. Annoying.
"Sorry for asking. Come here, then. I owe you a kiss."
"Mizuki? Did you just...?"
"D-did I what?"
"You're shaking."
"Shut up. Shut up, just..."
Mizuki was short of breath, she was throbbing between her legs, she could feel herself clenching around nothing. She was sitting in her mother's lap, both of them panting a little from what they'd just been doing—Mizuki more than Shizue. They had done this so many times before, but this time Mizuki really thought she was going to die, her heart was acting up so bad. Shizue had told her to come sit closer, she'd give her another adult kiss, another real kiss, which bothered her, because had the kisses they'd had up until the adult ones been fake?
But Mizuki had done it, and although it still felt weird, she'd gotten used to it. She'd come to love it, so much that she didn't know what to do with herself when they'd been kissing for too long—it felt like there was something in her that was desperately trying to escape. She'd started moving around on top of Shizue, jerking her hips in time with Shizue's bouncing leg, but something had happened, and she'd stopped because it felt like she was one more twitch away from peeing herself.
She wasn't sure what was happening, but Shizue looked happy.
"You really do like kissing, huh?" Shizue pressed her lips to Mizuki's. She was a little disappointed when she realized that her mother was only giving her a quick smooch. A child's kiss. A fake kiss. "Didn't think someone could actually cum just from that."
Again, with Shizue saying things Mizuki didn't understand, as if she were trying to make Mizuki look dumb. Put off, she asked, "What do you mean? Come where?"
"No, not like that, it just means—never mind. Don't worry about it. Do you want to keep kissing? I don't care if you hump my leg."
"I wasn't! I didn't even...I was just..." For once, Shizue was silent. She tilted her head, cocked her brow, then sat there and waited for a response. The buzz in Mizuki's body was dying down and she really fucking wanted it back so maybe arguing with her mother was not the most efficient use of her time. "Fine. Whatever. Yes."
"Good girl," Shizue said.
(That phrase was definitely better suited for little kids, but Mizuki found it a lot harder to complain with her mother's tongue in her mouth.)