My kinkiest sex encounter happened in Prague.

I’d just finished studying abroad in England, and this trip was a last hurrah to celebrate my time in Europe. I’d been a shy, timid girl growing up, and getting out of my comfort zone had been liberating.

My hostel was just off Old Town Square, within walking distance of the famous astronomical clock. I was shocked to realize it was also close to the Museum of Sex Machines. I had no idea what I’d find inside, but I couldn’t pass up an opportunity to find out. I’d always been curious about kinky sex — I loved reading naughty books and magazines, and I often masturbated to BDSM porn.

The sun had just set when I paid the entrance fee and went inside. It wasn’t crowded, so I was able to walk slowly and see everything. It was full of kinky objects — dildos, chastity devices, sex swings, gimp masks, and latex bodysuits. My favorite objects were BDSM-related: floggers, cuffs, and spanking benches. My pussy clenched at the thought of being tied down with my legs spread and my body immobilized and ready to be used.

I was so turned-on that I stopped exploring and went to sit in the museum’s empty theater, which was showing old-fashioned pornography. The black-and-white film wasn’t nearly as hardcore as the porn I usually watched, but my body was throbbing and I needed to take care of it. As a curvy woman wriggled out of her clothes onscreen, I unbuttoned my shorts and slid my fingers into my panties. My pussy was shockingly wet. I penetrated myself with two fingers, grinding my hips as I imagined a thick cock inside me.

Just as I was about to come, a man entered the cinema. I pulled my fingers out of my pussy with a gasp. His arrival had ruined my orgasm, but nearly being caught was incredibly arousing. He sat in the row behind me. I wriggled in my seat, wondering if I could get myself off without him noticing.

“You were touching yourself,” he said in a posh British accent.

“Excuse me?” I turned around, simultaneously outraged and embarrassed, catching my breath at the sight of him. He was in his mid-30s, with tousled black hair and a strong, stubbled jaw. His dark eyes smoldered. If there was a God and He cared about the sexual cravings of adventure-seeking Americans abroad, this man had been crafted exactly for me. He oozed masculinity, and his wicked smirk made me want to fan myself.

“Did the film arouse you?” he asked. “Or were you aroused before you came in here? Tell me.”

There was something in his commanding tone. I instinctively knew he wouldn’t accept anything less than the truth from me. “I was turned on earlier,” I confessed.

He leaned in. “Tell me what aroused you.”

I nibbled my lip and shifted in my seat, enjoying the scrape of my inseam against my clit. “The spanking benches. The floggers and cuffs.”

“You want to be dominated?” he asked. “You want to be punished and used?”

My body throbbed with want. What was happening to me? I was blisteringly aroused by this strange conversation. I nodded, unable to speak.

“Have you been dominated before?”

I shook my head. My sexual cravings were boundless, but my actual experience had been sadly limited.

He stood and held out his hand. “If you want it, come with me.”

I stood up like a woman possessed. My skin prickled with goosebumps and my pussy throbbed. In this surreal and incredibly liberating moment, I wasn’t a shy girl anymore. I was the kind of woman who masturbated in public and fucked sexy strangers. I placed my hand in his and shivered.

“Your safe word is ‘red.’ Use it if you want me to stop entirely. ‘Yellow’ means I shouldn’t push you further, and ‘green’ means you want more.”

I giggled a little at the stoplight safe words, then gasped as he jerked me into his body. His hand landed on my ass with a solid slap. “You don’t speak unless I tell you to. You don’t laugh. And you will call me ‘sir.’ Understood?”

“Yes, sir,” I whispered.

I followed him out of the museum, shivering with anticipation. He led me to an apartment complex a few blocks away. His place was on the top floor, with an incredible view of the city. It was sparsely furnished, and my gaze immediately shot to a black spanking bench with attached cuffs.

“Strip,” he commanded as he shut the door. He shucked off his coat, revealing a white button-down shirt tucked into navy slacks. The sexy business professional attire cranked my lust higher. He removed his tie and watched me fumble with my shorts and tank top. When I was down to my lingerie — an embarrassingly youthful set with green polka dots — I hesitated. I didn’t even know this man’s name, and he was about to see me naked.

Not knowing his name somehow made it even hotter.

He raised a brow and gestured for me to continue, so I removed my bra and shimmied out of my panties. As his gaze ran over my nude body, I stroked my pussy and moaned. I was dripping.

“I was immobilized, with my ass presented to him and my pussy lips spread.”

He instantly got in my face. He grabbed my hand and pulled it away from my clit. “I didn’t give you permission to touch yourself,” he said.

He dragged me to the spanking bench. It was a flared rectangle, wider on the bottom, with flat sections at the base on either side where I could rest my knees and forearms. He pressed me forward onto it. The narrow length of the bench supported my torso, but the sloping sides spread my legs for his use. He buckled my wrists and ankles into padded cuffs at the base. I was immobilized, with my ass presented to him and my pussy lips spread. I shivered as cool air brushed my wet cunt.

He dragged a hand down my spine, then gripped my ass. He massaged both cheeks, slapped them a little, then pulled them wide to inspect me. I squirmed, both mortified and aroused that he was seeing me like this.

“This gorgeous cunt is mine,” he told me. Then he moved around the bench and blindfolded me with his tie. I couldn’t see anything, but I heard him rummaging through a nearby dresser. He talked the whole time, telling me what he was going to use — his hands, a flogger, candle wax, ice, and finally his cock. “I’m going to hurt you so good, filthy girl,” he said. “And then I’m going to fuck you so hard you’ll feel me for days.”

I wriggled, desperate for the fucking. He smacked my ass in punishment, then spanked both cheeks repeatedly, alternating between soft taps, hard blows, and scrapes of his nails. When my skin was hot and sensitized, he trailed the flogger over my back, letting me feel what he was about to use on me. He swung, and the leather tails stung one ass cheek, then the other. I jerked in the cuffs and gasped, but he didn’t let up. He struck me over and over again, varying the pressure of his strikes. My skin was on fire, but the pain was incredible. I was completely at his mercy, and a crazy rush of endorphins was lighting me up.

Periodically he’d ask what my color was. Green, green, green. I couldn’t get enough of the exquisite torment. My pussy trembled with every blow, desperate to clamp down on something hard.

The flogger vanished. His hand smoothed over me, and then something hot stung my upper back. Wax. The flare of pain turned into ecstasy almost immediately. I writhed against the bench, desperate to grind my clit against something, but he stopped me with a hand on my lower back. “Your orgasm is mine, too,” he said in that precise accent. “I control it.”

I moaned, unbearably aroused at the knowledge that I couldn’t come until he let me. He tormented me with a few more drops of wax, and then the sensations paused. When they started again, it took a moment to register that the sharp sensation came from ice this time. Cold water trickled down my ribs, and when he reached my ass, the frigid liquid slid over my sensitive asshole and pussy. I writhed and received another spank.

“More,” I demanded.

I knew he would punish me for speaking out of turn. I braced for another blow, but he didn’t touch me. I heard him move around the bench, and then something hard prodded my lips. I opened my mouth reflexively and licked, tasting precum. His cock was at my lips, and I couldn’t wait for him to feed it to me. I opened my mouth wider, and he pushed in slowly until I couldn’t take any more of him. He started fucking my mouth, choking me with that gorgeous cock while I moaned around him. I could hardly breathe, but I didn’t care. He was punishing and using me, just like he’d promised, and I couldn’t get enough.

He pulled away with a grunt, and then I heard the telltale rip of a condom wrapper. I whimpered, and my pussy throbbed at the realization that he was finally going to fuck me.

“His cock was at my lips, and I couldn’t wait for him to feed it to me.”

“Do you want my thick cock in your pussy, filthy girl?” he asked as he returned to the other end of the spanking bench. His hands landed firmly on my ass, and then he massaged the brutalized skin.

I was out of my mind with lust. I begged for his cock, telling him how empty I felt and how much I needed him inside me. His erection nudged my pussy, and then he slammed into me. He was long and thick, and it hurt in the best possible way. He fucked me with hard, merciless strokes. I took every punishing thrust and begged for more.

He fucked me until I was nearly crying with the need to come, and then he slid a hand under me and pressed my clit, commanding me to come for him. My orgasm was instant and devastating. My head spun, and my body spasmed uncontrollably. He thrust one last time, his body shaking as he orgasmed.

He unchained me and helped me to bed, then spent the rest of the night caring for me. He fed me, gave me water, and held me until my shivers faded. I passed out in his arms.

When I woke in the morning, he was gone. There was a fresh pot of coffee, a pastry, and a single red rose waiting for me in the kitchen, along with a note.

For my filthy, beautiful girl, it said. Thank you.

I left Prague a few days later, but I can’t forget that perfect night. I’m already saving up for another European vacation — somehow I know I’ll meet my stranger again.