When Lydia was in a dungeon mood, all Derek could hope for was that he wasn’t the one in heels. He wasn’t opposed to them, or Lydia wouldn’t make him put them on, but he’d much rather be chained to the wall and watch Stiles squirm under the scrutiny of their beloved girlfriend.
“You look so pretty in red, Stiles,” Lydia said, the corner of her mouth curving in a devilish smile. “Don’t you think so, Derek?”
Derek nodded, swallowing around the gag in his mouth. Stiles did look pretty in the lingerie Lydia got for him. It fit him well and it didn’t leave much to the imagination. He was standing awkwardly in the heels that matched, as if he couldn’t decide whether he liked it or not. If Derek knew Stiles at all —and he was sure he did— Stiles was enjoying this but was reluctant to say so.
“Turn around, Stiles.” Lydia used her finger to show how Stiles was supposed to turn.
Stiles did as he was told with only the tiniest of pouts. Lydia’s smile was enough to make Derek think about putting on lingerie himself. Whatever it took to keep it on her face forever. He twitched in the handcuffs that kept him tied to the mesh at his back.
“Derek, did you just move?”
He stayed put, careful not to wriggle his fingers or shake his head. She walked to his side, using the tip of the short whip to caress his torso from the shoulder all the way to his groin. Derek let out a shaky breath when Lydia’s fingers touched his hard cock, then startled when she flicked the tip with her finger.
“You’ve been such a good boy today, Derek. Much more cooperative than Stiles, that's for sure.” Derek preened at the praise, pleased that Lydia was recognizing his good behavior. She sounded amused, as if the show they were putting on for her was the most entertaining thing ever. She reached to remove the gag, unclasping it from behind his head.
“Thank you, Ma’am,” Derek said the moment he could speak again. It always paid to be thankful and polite when Lydia was in this mood.
She gave him a quick smile and turned to Stiles.
“To the chair, Stiles.” Lydia emphasized her point with the whip. “Derek, follow me.”
Stiles whined low on his throat, getting ahead of the situation at play. The moment Stiles walked by his side, Derek noticed his cock was leaking in his panties. He swallowed his desire to focus on Lydia’s. Derek had been good, while Stiles complained and pouted and gave Lydia his best sad brown eyes, when she wanted nothing but compliance right now.
She sat by the edge of her padded throne, legs wide open, giving Derek a view that would surely make it to his best dreams.
“Come on,” said Stiles.
Derek turned to him briefly, his grin the only giveaway that he was enjoying this just as much as Lydia.
“On your knees,” Lydia said, pointing at the floor in front of her.
“Yes, Ma’am,” he said.
Derek kneeled in front of her throne, his head hung low, and saw from the corner of his eyes that Stiles adjusted his leaking cock in his panties.
“Stiles, did I give you permission to touch yourself?”
“No, Ma’am. I’m sorry, Ma’am.”
“That’s more like it.” She grabbed Derek’s chin until he looked up at her, her eyes sizing him up. “Let’s see what that pretty mouth can do.”
Derek swallowed, nodding slightly.
“And don’t touch yourself or Stiles is not gonna suck your dick afterwards. Understood?”
“Yes, Ma’am,” answered Derek.
Lydia didn’t wait for another word and pushed his head down between her legs, reclining in her throne, her hand grabbing a fistful of his hair.
Derek’s nose buried in her pubes, the scent of lust thick in her skin. He closed his eyes as his tongue lapped Lydia up, slowly circling her clit until he drew a moan out of her.
Soon enough, he got lost in the repetitive motion of his tongue on her cunt, lapping her juices up with enthusiasm, the obscene sounds of Derek eating Lydia out the only thing that filled the room —occasionally interrupted by Stiles cursing, which could only mean Lydia was playing with her nipples or licking her fingers to provoke him.
His cock sat leaking against his thigh, hard as rock, and he wished he could touch himself while he got her off, but the idea of Stiles’ mouth on him was too good to pass up. If Lydia was in a Dominant mood and still allowed him to get off, he had to take the opportunity and enjoy it while it lasted. Because of that, he did his best to please her, alternating between licking and sucking until her breath became uneven and her moans more frequent.
Her thighs tensed and Derek knew she was close, which was confirmed when she moaned and told him “don’t stop, Derek. Don’t you dare stop.”
He did as he was told, careful to keep up the rhythm so as to not ruin it for her. His jaw was starting to hurt, but he would be damned if he stopped right now.
Derek was rewarded for his efforts when Lydia came, an aborted cry in her throat, his name on her lips, juices dripping down his chin.
“Fucking hell,” he heard Stiles curse under his breath as he came up for air, licking his lips.
Lydia opened her eyes to look at Derek, she looked pleased, but clearly not done with him.
“Change of plans,” she put a hand on Derek’s cheek, coming close enough to kiss him. “I wanna see you fuck Stiles while he eats me out.”
Derek glanced at Stiles just in time to see him throw his head back and count to ten.
“Stiles,” she called.
“Yes, Ma’am?”
Silence stretched while Lydia enjoyed the power she had over them. Finally, she said, “you may come over.”
“Thank you, Ma’am,” he said, standing up.
“On your knees.”
“Yes, Ma’am.” Derek swallowed, watching as Stiles crawled towards them, his cheeks tinted pink.
For his part, Derek stayed still, aware that the wrong movement could have the scene over within seconds. Lydia reached out to the table next to her throne and offered Derek the lube. “Don’t drag it out. And if he comes, keep going,” she instructed.
“Yes, Ma’am.”
Stiles reached them, keeping his eyes down. Lydia grabbed his hair and pulled until he looked at her. “I wanna come. Hard. Understood?”
“Yes, Ma’am,” Stiles buried his head in between Lydia’s legs —his ass up straining the seams of the red lingerie he was wearing— just as she settled back, enjoying herself.
“Derek? Do you need an invitation?”
Derek fumbled with the bottle, but thankfully didn’t drop it as he lubed his fingers. He moved Stiles’ panties to the side and entered him. Stiles moaned when his first digit went in which, in turn, made Lydia moan. Derek’s cock ached to be inside Stiles, to be surrounded by his heat and keep drawing those sinful moans out of him.
As Lydia directed, he didn’t drag it out. Instead, he fingered Stiles until the man was pushing his ass back into Derek’s hand, trying to chase for more pleasure. One finger soon became two and Stiles' heartbeat was as loud as Lydia’s in his ears.
Derek couldn’t take it anymore, pulling his fingers out of Stiles with a scissoring motion in an attempt to stretch him enough that his cock wouldn’t hurt him when Derek entered him. Stiles whined as Derek stroked his own cock with some lube. Derek looked up at Lydia to get her permission to keep going and choked with the view: Lydia with her pale legs sprawled open, head thrown back in pleasure, and Stiles lost between them, his ass pushing back to find Derek and get his own pleasure.
It was a sight he’d seen enough times that it wasn’t surprising, but not enough to get bored of it. He didn’t know if he’d ever get tired of it.
“Ma’am, may I–”
“Yeah, yes, Derek. Fuck him.”
And because Derek was nothing if not whipped, he lined up, holding Stiles’ panties to the side, and entered him in one slow, deliberate motion. Stiles moaned, his head moving far enough that Lydia pushed him back into her cunt roughly.
“Stay down,” she added, putting one of her legs on his back to hold him in place.
Derek stilled, grabbing his cock at the base to stop himself from coming too soon. If he did, it’d be over and there was nothing he wanted less. Once he was sure he wouldn’t bust the moment he moved, he pulled away, only to slowly push his hips back into Stiles
Lydia looked at him, rolling her nipple between her fingers. She said, “fuck him properly.”
So Derek did.
He got lost in the rhythm of his own hips thrusting inside Stiles while the man moaned low in his throat. He was sure that if Lydia allowed it, Stiles would be touching himself.
Derek knew the moment Stiles got close because he started pushing back on Derek’s cock, meeting his thrusts halfway. For her part, Lydia looked as if she was enjoying the show. It only drove him closer to the edge. Derek was ready to throw himself over it.
“Ma’am, may I come?”
Lydia ignored him, chasing her own orgasm on Stiles’ mouth. She came silently, her mouth falling open as she threw her head back. Derek saw her legs twitch with tremors, but that didn’t stop her from keeping Stiles down on her cunt.
Derek could’ve come right then. “Ma’am, may I please come.”
Lydia’s eyes opened and they locked eyes for a moment that seemed to stretch into eternity while Derek held on to Stiles for dear life, his nails digging into the tender skin of his ass. With a smirk, she said, “Stiles, you may touch yourself now.”
Stiles mumbled a quick thank you, then he was stroking his own cock faster than Derek’s hips could move. His orgasm seemed to catch him by surprise and his hips stuttered as his hole clenched around Derek.
Derek closed his eyes, counting to ten, then twenty, but he could barely keep himself in check.
“Derek,” Lydia said. “Look at me.”
He did as he was told only to find Lydia smiling at him.
“Make it quick, baby. I want a shower.”
She didn’t have to tell him twice.
Derek fucked into Stiles with abandon, drawing whimper after whimper out of him. Now that Lydia had come, she was no longer holding Stiles down, and after finishing himself, Stiles wasn’t even lifting his head from the floor, clearly spent.
His orgasm was like a whip cracking, quick and loud. He came as if he’d been weeks without fucking either of them, which was ironic considering all they’d done that day was fuck like, well, animals.
After his vision cleared and he could think again, Derek pulled out of Stiles with a groan, watching as come dripped out of his hole.
“Fucking hell, Derek,” said Stiles from his awkward position on the floor.
Lydia stretched her arms over her head. “Shower, then food?”
Derek loved her, but he’d rather die than cook anything at the moment. His entire body felt like jelly still.
“Lyds, if you don’t mean delivery, we’re breaking up,” said Stiles, voicing his own thoughts.
“As if you would,” said Derek under his breath.
Lydia rolled her eyes at them as she got up. “I’m ordering pizza. You two can do whatever you want, but I’m going to shower and probably get off again just for fun.”
Stiles raised his head, just as Derek’s eyes trailed after her. Lydia didn’t look back as she added, “you are welcome to join me, by the way.”
Derek and Stiles looked at each other for a fraction of a second then followed after her as she knew they would.
They never got around to ordering that pizza.