Luci and Mikayla were getting ready for a fun night in. Both were completely naked in bed, giggling as they showed off their privates.
 
"Check this out," Luci said, flashing his dick at his girlfriend. "Pretty cool, huh?"
 
"That's nothing," Mikayla said, smirking. She showed off her round, beautiful ass, pointing it at her partner with a grin. "Look at that."
 
"Nice," Luci said, laughing. He scratched his chin. "Hey, I got an idea. Do you want to have some fun?" he asked.
 
"Sure!" Mikayla said. She grinned. "I'm always up for some fun."
 
Luci smiled. "Then tell me I'm a bad boy and spank the shit out of me."
 
Mikayla smirked. "With /pleasure/. What are the limits? Any preferences?"
 
Luci thought for a moment. "Let's do the regular fifty with the paddle and belt," he said. The demon grinned. "And after you spank me, I'd like to spank /you/, Mikayla."
 
The robot was clearly turned on by the thought. "Heck yes. Let's do it."
 
She sat up in bed and swung her legs over the side, patting her lap. "Come on, bad boy," Mikayla said. "Get over here."
 
Obediently, Luci lay down over his lap. Mikayla reached into the cabinet next to the bed, and pulled out the paddle and belt. "Alright, bad boy," the robot said, her voice rougher now. "Let's give you your punishment."
 
"B-But I'm not a bad boy!" the demon protested.
 
"Yes you are!" Mikayla snapped. "And I'll be punishing you until you finally see your terrible nature."
 
She brought the paddle down on Luci's butt with a loud /thwack/! The first hit was always the best: the sensation of wood against skin, the echoing sound upon contact being made, and the cry of pain from the submissive himself. And then lifting the paddle back up, and seeing the demon's black ass has become bruised with red.
 
Mikayla grinned. "There's more where that came from," she said. "Fourty-nine more. Think you're a bad boy yet?"
 
"Never!" Luci cried.
 
"We'll see about that."
 
And so Mikayla brought the paddle down, again and again. "2 . . . 3 . . . 4. . ." She alternated between hard and soft slaps with the wooden instrument. "23 . . . 24 . . . 25. . ." The cries of Luci at each hit was music to Mikayla's ears. "48. . . 49. . . 50!"
 
She brought down the paddle for the final hit, then bent down to meet Luci's eyes. "What do you think, bad boy?"
 
"I'm bad!" the demon sobbed, his buttocks red and bruised. "I'm so bad!"
 
"Good," Mikayla said. "Now get ready for Stage Two of your punishment."
 
She picked up the belt, and began whipping.
 
Each /crack!/ of the whip made Mikayla wet. She was almost disappointed when they reached fifty lashes, and she put the belt down on the bed.
"Punished enough, bad boy?"
 
"YES!" Luci sobbed. Mikayla took a moment to admire his red ass, then nudged the demon. He stood, and then sat back down on the bed. It was Mikayla's turn.
 
The robot laid across Luci's lap, already whimpering. "You've been very bad, Mikayla," the demon purred, picking up the paddle and rubbing it in his hands.
 
"I have?" the robot sniffed.
 
"Oh yes." The demon nodded. "I've consulted with Satan and the dark lords themselves--you've been, very, /very/ bad. The worst girl they've ever known.
 
"And now you must be punished!"
 
Luci brought down the paddle and slapped Mikayla's bare ass, causing the robot to let out a cry of pain. "And there's more where that came from, bad girl," the demon said gleefully.
 
He spanked her fifty times with the paddle, ignoring Mikayla's crying. When he stopped, Luci said, "So you agree you're a bad girl yet?"
 
"I--"
 
Luci switched from the paddle to the belt, and whipped Mikayla, stopping her words in their tracks. Then the whipping began in earnest, and the strokes became a rhythm that filled Mikayla's ears and stung on her ass. All while Mikayla got wetter and wetter, rubbing her vagina against Luci's knee as he punished her. Finally she came, erupting against her boyfriend at the thirty-fifth stroke. The rest of the whipping was a happy blur, which Mikayla woke up from when Luci finally stopped the punishment.
 
When he finished, Luci rubbed Mikayla's ass with one hand, and said sultrily, "So, you admit it?"
 
Mikayla reached up to wipe the tears from her eyes. She cried, sobbing, "I'm a bad girl, you're right! I'm such a bad girl!"
 
"Good," Luci said, satisfied. He patted her tender ass one more time, and then nudged her. She stood up, and Luci put the paddle and belt back in the bedside table.
 
The two looked at each other, and hugged, squeezing each other tight. Then Mikayla reached down and swatted Luci's red buttocks--first with her hand, then with her tail. Luci smirked and did the same, hitting her ass with his own, pointy tail.
 
"You all good?" Mikayla asked, reaching into the bedside cabinet and pulling out two water bottles. She gave one to Luci, and kept one for herself, sipping slowly.
 
"Yeah, I'm good," Luci said, drinking his water.
"That was intense. But good."
They sat in silence for a few quiet moments, slowly getting out of sub space and top space.
 
"You know," Mikayla said, grinning, "there's still time to have more fun
 
"Now," Mikayla said, looking at her demon seductively, "let's get to it."
 
They went back in the bed and fucked, first giving each other handjobs, then moving to penetration. Luci brought his penis into Mikayla's ready vagina, moaning as they fucked, humped, and kissed, all with primal energy. Finally, Luci came in one long blast, and Mikayla moaned at the feeling of his cum inside her. Then Luci removed his dick from inside of her, and they both flopped down on the bed, bruised, tired, and entirely satisfied.
 
"Love you, bad boy."
 
"Love you too, bad girl."