He believed her. He wouldn't be surprised if she started keeping a razor at the office. "How do those clamps feel now?"

"They're starting to burn, Sir."

"Shall I distract you?"

"Please."

He toyed with her pussy. She shifted beneath his hand.

"Oh my..."

"Yes?"

"Sir, that's..."

"Go on."

"The pain in my nipples is making me more aroused than I could imagine."

"Not so bad now, Chelsea?"

"It's exquisite, Sir. With my ass throbbing, too, it's... Oh, God, I want to come!"

She became slicker. Shamelessly she pushed her pelvis against his hand. He debated whether or not he'd let her come. She'd been punished, and she'd been a little sloppy in her shaving. "I can smell you."

"Please, Sir. Please," she called out. "May I come?"

He moved his hand away. "I think that's enough for today."

"But-"

"Enough."

She closed her eyes and grimaced in apparent irritation.

"You can suck my dick to thank me for putting up with such an ill-mannered trainee," he said.

"Thank you, Sir."

She crawled over to him and unbuttoned his trousers. They fell around his ankles. She worked her hand inside his boxers and stroked his cock, making it hard before she removed those, too. Spanking her, smelling her, hearing her moans of need, had made him horny.

She looked up at him through her eyelashes, one of the most seductive things he'd ever seen. She cradled his balls and ran her thumb over the slit in his cock to transfer the first drop of pre-ejaculate onto her skin then into her mouth. She made a show of sucking her thumb.

He captured the chain that ran between her nipples. "Let's make this more interesting," he said. He pulled her up onto her knees and looped the linked metal over his hard cock. It would prevent her from pulling too far away.

"Ah... Diabolical, Sir," she said.

"Don't touch yourself," he warned.

Chelsea set to work giving him head, keeping her mouth open wide to take as much of him as his thrusts demanded. She sucked him, licking his cockhead. He dug his hands into the short waves of her hair, cradling her skull and holding her prisoner.

He rocked his hips until he found the rhythm he wanted, then he held her head tighter so he could fuck her mouth. "You're doing well."

She made slight gagging sounds, something they'd need to work on correcting, but she continued to service him. Of course, with the way he was holding her and the way the chain dragged on her nipples, she had little choice.

"Swallow every drop when I come."

She nodded as much as possible. He tipped back his head and closed his eyes, enjoying the feeling of having his dick down her throat. Absently he wondered why he'd been so adamant about not playing with subs. Being with a woman who was so desperate to please was the stuff of dreams.

Her enthusiasm increased as his cock thickened. Need boiled from deep in his balls. "Every drop," he warned before he could no longer speak.

He groaned as hot cum pulsed into her mouth.

Dutifully she worked to take the load, swallowing, licking.

He immobilised her head as she sucked him dry.

When she was done, she tried to kneel back, but the pain in her nipples forced her back upright.

"I may do that to you every time you give me head."

"Yeah, about that, Sir..." She wiped the back of her hand across her mouth. "I liked sucking your dick, Sir," she said. "Thank you."

"You did well. How wet is your cunt?"

"Not very," she said.

"You're no longer on the verge of coming?"

She shook her head, then stilled as the chain moved.

His cock became flaccid, and he dropped her chain. She winced a little.

"You may get dressed."

"Sir?" She blinked, looking up at him.

"That's enough for tonight. Get dressed, but leave the clamps on. Do not remove them until you arrive home."

She opened her mouth as if to protest, but then closed it without saying a word.

"Very wise," he said. He pulled up his boxers and pants, zipping and buttoning them as she wiggled into her skirt and thong. He folded his arms as he watched her shrug into her blouse. Her movements were careful, in deference to the clamps, and she left off her bra entirely. "Call me when you get home for permission to remove the clamps."

"Yes, Sir."

She gathered her belongings, removed her keys from the hook inside her purse, then stuffed her bra in the shallow depths. He walked her to her car and tugged on the chain as she slid the key into the ignition.

"Do you show no mercy?" she asked.

"Would you like to sleep in them?"

"Thank you for your generosity in letting me remove them when I get home, Sir."

"I would have hated to give you a bare-assed spanking right here in front of the neighbours. I'm sure Mr Jones across the street would enjoy the view."

She gasped. "You wouldn't."

"Try me. I'll have you over that hood with your skirt around your waist so fast you won't remember your name."

She sank deeper into the leather seat.

"Drive safe," he said, flicking the door closed.

He watched until she accelerated away then turned the corner. She had looked in the rear view mirror a couple of times, but she hadn't waved.

And he realised why he didn't play with subs more often. He had discriminating tastes. And he wanted a sub like her.

Less than half an hour later, she called.

"I'm home, Sir. Thank you for an instructive evening."

"How do your nipples feel?"

"Numb."

"They won't be when you take off the clamps."

"I'm sure you're right."

"Let's find out. Put your phone on speaker so you don't have to hold it, then remove your shirt." He heard rustling sounds that indicated she was following his directions.

"Damn. Every little motion hurts, Sir."

"Good. Good. You're being very obedient."

"I'm putting my shirt in the laundry hamper."

Of course she would put it where it belonged.

"I'm removing the right clamp now, Sir."

She gasped. "Fuck. Fuck, fuck, fuck, fuck, fuck."

He imagined sucking on the tip. It might hurt initially, but the hurt would soon vanish. She'd be writhing beneath him in no time. Even though she'd sucked him off less than an hour ago, his cock responded to the sound of her pain. "Now the other one."

"Damn. I wish there was a way to get this off without it hurting."

"Then you'd defeat my purpose."

"You want me to suffer," she said.

"Oh, yes, my sweet girl. All the time. Take it off. Now."

She whimpered.

"You're stalling."

"Yes." There was silence followed by a loud hiss. It took her a few seconds before she said, "Damn."

"Too bad I didn't put one on your clit."

"Thank you for your kindness."

"You still need work on your manners."

"I'll be honest, Sir. It's hard to remember when I hurt so bad. It's like everything is in a haze. I can hardly think."

"When you're instructed to do something, you may want to think it all the way through. Break it down in your mind, first. For example, tell yourself you'll remove the clamp and immediately express your gratitude. Think how much your Dom wants to hear those words. There are many things he or she could be doing other than listening to your complaints."

"You're right, Sir. I beg your pardon."

"You're going to be tempted to masturbate tonight," he said. "Your breasts and nipples will be sensitive, and with the way I played with your cunt earlier, you'll want to come. But I forbid it. You didn't earn it, and it doesn't matter how wrong you think I am. Do not pleasure yourself."

He remained silent until she said, "I understand, Sir."

"When you arrive tomorrow, I want you wearing the clamps." He pictured her gritting her teeth to hold back a disrespectful response. He was pushing her limits now, and he knew it.

"Anything else, Sir?"

"That will be all, Chelsea. I will let you know if I change my mind." And he might.

"I was wondering..."

"Go on."

"Saturday is the day after tomorrow. Can we spend some extra time together? I know you're busy, but I was hoping you could beat me."

"You know what you're asking?"

"Master Evan C likes to tie up his subs and whip them."

Alex nodded. She was right about that. "Does early afternoon work for you? I'd like to take you to out to dinner to give you a little more exposure to being in public."

"I'll rearrange my schedule. Three o'clock all right with you, Sir?"

"It is. Make sure you have heels and a skirt. Look at your rear in the mirror. If there are any welts, put arnica on them. Oh, and there is one more thing for tonight. Sleep in the nude." He didn't give her time to respond. He pressed the icon to end the conversation, then he went back downstairs and poured himself a whisky. Generally, she tried to negotiate a later start to their evening, but now that time with Evan C was looming, she wanted more practice. Evan C, if he weren't such a prick, would realise he was a lucky man.

Honouring her request for tomorrow's session, he headed back upstairs to prepare the guest room. He moved the St Andrew's cross into the middle of the room, and he selected two floggers. If she wanted a beating, he'd give her one. The first flogger would warm her nicely. The second would satisfy her desire to experience a real whipping.