My girlfriend, Miki, is a total, complete and utter brat. I’m serious. If she wasn’t so damned cute and sexy, she probably would have driven me crazy by now. Like just the other night, Miki snuck up behind me in the bathroom, while I was getting ready for bed. As I eased my snug shirt upward, she began stroking my back and sliding her short nails over my shoulders. I probably should have known better, but I’ve always been a sucker for a good back-scratching. So there I stood, arms over my head with my hands bundled up in my shirt, sighing in pleasure as Miki “itched” me.

But a moment later, I felt her hands reaching for my middle. She pushed into my shorts, feeling up my stiffening cock and sliding her clever fingers over my aching balls. It was heavenly.

“You like that?” she whispered. “You want a little more?”

“Oh, yeah,” I moaned.

Next, I felt my shorts being pulled down roughly. Then, before I could do more than squawk in startled confusion, Miki reached up and yanked the shirt down, tangling up my arms and covering my head. Roaring like a bear, I staggered around the bathroom to free myself while Miki stood, laughing in delight.

OK, that was harmless enough. Her tricks and teasing never get truly mean-spirited. They also always end with her giggling that distinctive, high-pitched giggle of hers, as one of her hands covers her mouth with its adorable overbite, and her dark eyes sparkle with mischief. Seeing her like that always gets me riled, so invariably I end up chasing her around the apartment. Sometimes she actually lets me catch her, and then…well, then things have a way of getting hot and heavy between us. But she’s so much fun, and the sex is so good, that I can never really get mad at her.

But Miki has another side as well, a submissive side that would probably surprise her friends. She has fantasies in which she’s a lovely, soft-spoken servant or some nobleman’s mistress, who’s inevitably put into bondage as punishment for some infraction.

Miki first revealed this side of herself to me shortly after we moved in together. We had just finished some amazingly hot sex, and as we lay side by side, she began recounting a fantasy about a master and his female servant, in which she took the servant’s role. Her voice was hushed and quiet, but I sensed how excited she was. When I laid a hand on her, I felt her body was warm and trembling.

“Then he tied me up. He did it himself. He didn’t have one of the other servants do it. And he tied me so tight. I couldn’t move at all.” She stretched her legs out as she said this, looking at her twitching toes with a kind of wonder. “Not even a little bit. And then…he fucked me.”

Bondage had never before figured very strongly in my own sex dreams, but hearing Miki talk that way made my cock hard all over again. I had a feeling I was not only hearing my lover’s most intimate personal fantasies, but also being shown a side of her I’d never before seen.

“Were you being punished for being bad?” I asked her, gently rubbing her leg. She purred like a cat being stroked.

“Maybe,” she confessed, with that charming giggle.

“For playing tricks on your master?” I persisted. “Is that why he tied you up and fucked you?”

“M-maybe,” she whispered, before breaking into another laugh.

I put my arms around her and pressed my lips to her silky cheek. Before long, we were kissing madly, and shortly after that, things got X-rated again. By the time the two of us were ready to drift off to sleep, we’d fucked twice and were both utterly spent. But I kept thinking about Miki’s story about being tied up. It was just too sexy — and too hot to forget. By the next day, I had made up my mind to bring her fantasy to life.

It was a Saturday, and Miki waited tables during afternoons on weekends, so I had plenty of alone time to do some research. I skimmed a couple passages of her favorite dirty book on her e-reader to get some inspiration. They were pretty hot, all about the exploits of a saucy young maid in a big 18th century country house. The poor thing was always getting in trouble and being spanked or tied up for her misdeeds. After taking some notes, I got online and made some orders from a reputable boutique that specialized in bondage gear.

The next week was pretty quiet, but when Miki got home from her shift at the restaurant the following Saturday, she found our bedroom transformed into a fantasy dungeon. Our bed was now equipped with padded cuffs and silk sheets, and the night tables laid out with a generous array of oils and adult toys. I had dimmed the lights and put on some sensual music. I was still clothed, but I was wearing an open-necked white shirt and dark trousers, the kind of thing one of Miki’s historical romance heroes would wear.

My girl was uncharacteristily quiet as she surveyed the scene, then she turned to me with a huge smile before immediately beginning to undress. In no time at all, she was naked and climbing onto the bed, feeling the smoothness of the silks and fingering the cuffs, like she was getting used to a whole new environment.

“Are you mine?” I asked. “Are you my girl?”

“Always,” she whispered before immediately spreading her limbs and letting me cuff her ankles and wrists. Once I had her secured, I spent a long while looking at her body, admiring the delicate mounds of her boobs and her dark-furred pussy. Having her stretched out before me, completely at my mercy, was a delicious new experience, and I was determined to make the most of it.

“Were you bad today?” I asked, reaching for her sweet tits. Miki sighed as I kneaded them, her shoulders rising slightly off the mattress. Her nipples grew stiff under my greedy palms. “Were you? Were you up to your little tricks again?”

For a few seconds, it was as though she was confused, unable to speak. Then she whispered with a pout, “Yes, Bastian. Sylvie said I was bad.”

I knew immediately what — or rather, who — she was talking about. Sylvie was a character in the sexy novel I’d skimmed. She was a more mature maid who sometimes took it upon herself to discipline the younger servants. I, apparently, was to play the role of Bastian, the handsome and coincidentally very well-endowed groom who helped with punishments and, as they say, other duties as required. I was perfectly fine with that.

“Oh? What was it you were doing, bad girl?”

“Sylvie saw me watching the girls at their bath.”

“Is that all?”

“She…she also caught me kissing and touching Marie.”

I knew Miki had bi-curious fantasies, and it didn’t surprise me to hear them coming out now. She stretched her bound body luxuriously, hissing between her teeth as I continued to massage her tits, putting a little more force into it.

“Is that right? And how did Sylvie say you were to be punished?”

“I was to be bound.”

“Tied up the way I have you now?”

“Y-yes. And fingered. Finger-fucked in my pussy until I can’t stand it any longer.”

“This way?” I pressed my hand against Miki’s very wet pussy and began teasing her delicate slit with the tip of my middle finger. It took very little of that treatment for her to go from wet to sopping. She lay with her head tilted back, whimpering softly.

I slid a knee onto the bed beside Miki’s captive body, to better keep up her teasing “punishment.” The tiny nub of her clit stiffened, and I tickled it with a steady rhythm. Miki curled her toes and wailed, wriggling her hips from side to side.

“F-fuck me,” she pleaded. “Don’t torture me, Bastian, I can’t bear it!”

“Fuck you, you say,” I mused. “With my finger?”

She turned to face me as she breathlessly added, “Or your cock. I won’t tell.”

My dick was as hard as it ever had been. I was hungry for Miki’s body, and I could easily have climbed atop her and given both of us the relief we craved.

But I still had a so-called punishment to administer.

Without another word, I let my middle finger slide into her pussy. She was so wet that I heard it squelching in her, even over the music. I worked my digit in and out of her, easily bringing her to the edge of a mind-bending climax — and then just as easily slowing down and easing off.

Poor Miki wailed as I withdrew my finger, sounding as though she were going to burst into tears. I knew she couldn’t stand to be denied when her need was at its most urgent, and I had no intention of putting her through any more torment.

Besides, I was pretty hot myself by that point. I couldn’t get my trousers off fast enough. I tossed them over a chair, and my shirt followed them shortly after. Miki watched with greedy eyes as I got on the bed, fondling myself to get my dick ready for the sweet harbor of her pussy.

When I slid into her, it was like a taste of paradise. My girl’s body seemed to tighten around me, the inner muscles of her tunnel gripping my dick like a lover’s hand. I let myself fall forward, my weight resting on the hands I’d planted on either side of her face. Then my hips went to work. I thrust into Miki again and again, biting at my lip as I fucked her.

She loved it. She caught her breath and returned my thrusts with quick, forceful lunges of her hips. She tugged at the cuffs, seeming to relish her helplessness. Each time my pubic bone bumped her soft mound she half-wailed, half-giggled with manic sexual energy. Harder and harder, I pumped. I felt her getting ready to come, and my balls were tingling, signaling that I wouldn’t be far behind her.

I exploded into her, gasping with relief as my balls emptied volleys of cream into her snatch. Miki’s eyes rolled as her climax took her. I felt pleasure shuddering through every inch of her, and when she relaxed on the bed, I wasted no time unlatching the cuffs and gathering her into my arms.

“There,” I murmured, kissing her ear. “Now, are you going to be good?”

“Maybe,” she whispered, flashing her mischievous smile. “You’d better keep an eye on me. Just in case.”