Chapter Text
"Alphy," she pleaded out suddenly, her voice small. "Touch me more."
"Wh-where?" Alphys asked, kissing her neck gently.
In response, Undyne grabbed Alphys's hand again and pulled it down further - right under her pants and underwear.
That killed Alphys's brain for a moment, as she hadn't even had time to prepare for it. So when her fingertips landed on already slick and hot flesh, her own body went hot - especially her centre.
But when she managed to revive herself, she concentrated on what she was feeling, and her mouth went dry, sudden yearning filling her. She looked up at Undyne, her other hand stopping for a moment, which got Undyne's attention.
"Undyne, c-can I, uh...?" Alphys smiled weakly, feeling as though she should be ashamed for asking this. "C-can I-I... use my... m-mouth?"
Undyne stared at her, her eye wide. Her face went even redder, and she nodded, swallowing hard. Suddenly, it was all she wanted.
Alphys pulled away a little so that Undyne could take her pants and underwear off, and Alphys decided to do the same with her skirt and underwear before she even thought of it.
It only occurred to her to be embarrassed when she saw how Undyne was staring at her: the same way she had when she'd taken off her bra.
Then, Alphys lowered her gaze, and found her whole body go even hotter.
Undyne was slender, and she had very nice legs. Her hips and rear were rather modest, but it suited her quite well.
And between her legs was, beneath a thatch of red hair, Alphys's goal.
With a skip of her heart, she knelt down, gently taking hold of Undyne's knees and pushing them apart, before she leaned down and rested on her elbows, getting nice and close.
Undyne had covered her eye, suddenly shy, but her hand jerked away the moment she felt an incredible sensation: the feel of a tongue on her most intimate flesh.
Alphys licked lightly that first time, her eyes still raised to Undyne. When she did, Undyne gasped and grabbed onto the bed beneath her, arching forward a little. Alphys grinned, then licked a second time, closer, savouring the taste of her and the feel of her. Undyne cried out, and Alphys suddenly felt her grab hold of the back of her head with one hand, the other still digging into the bed.
Alphys decided that was a challenge, and leaned closer, dipping her tongue deep into Undyne's centre.
Undyne jolted, suddenly, a sound of a surprised laugh bursting from her. "Holy shit, Alphy!" she cried. "Your tongue!"
Alphys swallowed a giggle, instead taking the time to lick longer and deeper, the tip of her tongue sometimes flicking over Undyne's clit. Every time she did that, Undyne dug her nails into her scalp a little and made a soft sound, one shortly replaced by a sharp cry as Alphys's tongue returned into her.
This is a dream, Undyne decided, her body trembling, a silly smile on her face. I fell asleep masturbating and this is my reward. There's no way this is real.
But even as she thought this, she could feel, deep in her body, the thrums of pleasure, growing larger and larger the longer Alphys went down on her. Her mind hazed over, her body taking over instead, and she writhed against Alphys's mouth, her eye shut tight and her heart racing.
"Alphy, I'm... I'm really close!" she managed to get out.
Alphys, in reply to this, slid her tongue up and over Undyne's clit, and Undyne cried out again, louder, especially when Alphys focused on it.
Undyne was losing it, now, she was losing it, maybe she never even had it...
She couldn't help it when it happened. And honestly, she never even tried.
When she came, she shouted out Alphys's name, more than once, sitting up and arching over her, even as Alphys tried to hold her in place by her hips. She barely noticed; she was completely overcome, lost in it, and when it started to fade, she shuddered and let go of Alphys to lie back down on the bed, as though all feeling had been taken from her - when really it was completely the opposite.
Alphys knelt for a moment, catching her breath and licking her lips, sitting up. She closed her eyes, a hand to her chest, relishing the taste that lingered and finding it the best thing she'd ever tasted.
"A-Alphy..."
She opened her eyes and looked over, finding Undyne looking at her with a wide smile on her face. Alphys blushed, then smiled faintly in return, nodding shyly.
"Come here?" Undyne asked, holding her arms out.
Alphys was in them the moment she finished, curling up into them as closely as possible. The feel of Undyne against her, naked and spent, was so wonderful that she sighed happily, resting her cheek on Undyne's chest.