“What the hell? Am I really seeing this?”

I heard the astonishment in Mark’s voice and turned around to look. We were at a vogue downtown gallery that his firm had taken over for the night for an investors’ gala. I had hit my limit on hors d’oeuvres, cocktails and small talk, and had come up to the quieter rooftop patio. Mark, the dutiful boyfriend, had accompanied me.

First, I saw the wide-eyed look on his face, then I followed his line of sight. The gallery was a four-story glass structure. Opposite was a hotel. I peered into the night, seeking whatever had so captivated Mark. I saw the hotel’s windows — some dark, some with curtains drawn.

But one room’s draperies were open, with the lights inside burning bright. The room was — in use. I drew a sharp breath and tightened my hand on the brass rail that encircled the roof.

“How can they just do that?” Mark wondered.

The couple in the smartly appointed hotel room was on the wide bed, naked, engaged in unmistakable sexual relations. Only the width of the street below separated us. We were maybe half a story higher, with a view down into the room that allowed us to observe absolutely everything.

“Don’t they know people can see?” Mark’s apparent outrage grew louder. This display offended him, the prudish part of him. I was very fond of Mark, but I had for months been working on this aspect of his personality. There had even been sex acts he’d hesitated to try when we’d first started dating.

I said, “Of course, they know people can see.” The sight had shocked me as well, but now I was staring with a growing eagerness. The couple was a pair of twenty-somethings, both with well-kept bodies. The woman was on top, taut thighs clamping the man’s hips, her back arched, long silky black hair caressing creamy shoulders as her head rocked back and forth. The man held her breasts as she rode him with an increasing fury.

Sympathetic excitement stirred in me. At twenty-six, I’d had a lot of interesting experiences in the course of my healthy, happy sexual career, but I’d never had an opportunity like this — to watch strangers engaging in intercourse, in real time. This wasn’t porn. Those two human beings over there were fucking.

“It’s indecent, Felicia!” Mark yelped.

I glanced at him with amusement, and for a moment, he seemed to recognize how ridiculous his puritanical stance was.

Ironically, it was his own commotion that called the attention of everybody else on the roof to the erotic spectacle across the street. A dozen or so people suddenly crowded the railing, pointing, gasping, laughing.

In the room, the woman was bouncing wildly atop her lover. It was weird to be unable to hear as her mouth opened in what had to be a satisfied cry of ecstasy. Her beautifully molded body shuddered. The man mauled her tits. Finally, she fell limply to one side. Bawdy applause broke out among the group of boozy partygoers surrounding us. It all felt gorgeously naughty. Obviously, we weren’t surreptitious voyeurs. The lovers had every light on in their room. The woman even looked up directly at us, which caused a cheer to break out on the roof. The man, grinning, gave us a wave.

“They want to be seen, Mark.” I closed a hand over his arm and drew myself against him. I liked the firmness of his body.

Despite his protests, I noticed he was still watching the sex scene.

Across the way, the woman rearranged herself on her hands and knees, and the man moved in behind her. His big, gleaming cock ratcheted up my own arousal. I found I wanted to rub my suddenly juicy crotch against Mark’s leg. I heard more gasps from the gathered men and women. We watched with a greater intensity now. Sexual interest rose like a damp fog. I felt joined to the group’s increasing excitation. My fingers dug into Mark’s arm, and I was breathing through clenched teeth.

The man drove himself into the black-haired woman. His fine musculature rippled. I loved the way she flexed with his impacts. They moved with a perfect rhythm. His hands gripped the full hemispheres of her ass. His thrusts were strong and steady.

I imagined myself taking that sweet pounding. Mark was easily as good a screw as this nameless male. But I let myself wonder how it would feel being fucked in full view like that, in front of utter strangers.

I bit my lower lip and huddled tighter against Mark. Desire tingled crazily through my body. Wild impulses burst inside me. I nearly felt drunk.

Over in the hotel room, the display had reached its pinnacle. The man was positively slamming her from behind now. She spread her palms against the wall, bracing herself. I imagined those hard, fleshy smacks, imagined that cock plowing my pussy. I could feel the many hungry eyes on us, me and my lover, as he started to jet deep inside my hole.

The man reared up like a bronco, spearing the woman. His mouth opened, and I almost heard his triumphant howl. She joined him. I watched her head whip from side to side. After staying locked like that a moment, he withdrew, went to the wide window, and closed the drapes.

Our merry band of watchers let out a collective sigh. A few embarrassed chuckles followed as people dispersed. We had all gotten caught up. Perhaps Mark had as well.

I looked up at him, wanting to ask if he had been turned on by the exhibition. I wanted to ask him other things, but all of a sudden I lost my nerve. If he was uncomfortable about certain sexual aspects, did I really have a right to push him? What I was thinking of now felt too dangerous and too extreme to just blurt out.

Before I could speak, one of the members of Mark’s firm led him back down to the party. I wouldn’t even get to take him to bed later. He was scheduled to fly upstate that night, where he would spend the next three days negotiating for parcels of industrial land.

Before leaving the patio, I looked longingly across at the now darkened hotel window and remembered the two lovely creatures I had observed there.

“Not to sound too spy novel about it,” Mark said from the passenger seat after I took an unfamiliar turnoff, “but where are you taking me, Felicia?”

I had surprised him at the airport. “I missed you,” I said. It was the truth. It was also true that I’d wrestled with agonizing fantasies the past three days and nights. I couldn’t get that exhibitionist couple out of my mind. “I want to take you someplace special.”

I drove him to a gentrified commercial district. That week the architectural magazine where I worked had been shooting a spread in a converted loft owned by a celebrity. The location had instantly conjured up a naughty scenario in my mind, and I knew the spot would be perfect for an erotic rendezvous. When we exited my car, Mark looked around the area uncertainly. Opposite the brick building that held the loft stood one of those industrial-looking dance clubs, so hip the place didn’t even have a sign on the door, just a bouncer built like a linebacker.

“Are we going in there?” Mark asked dubiously, indicating the club’s entrance.

“No.”

Suddenly, I felt my own surge of doubt. I had planned this carefully and enthusiastically, electrified by each detail. This would be something new for me, and definitely new for Mark. But he had to be willing.

I was trembling when I took his hand and led him inside the brick building, using the key I had obtained. The loft would be empty, the photographers gone for the day, the celebrity owner off on a New Zealand vacation. We went up to the third story in an elevator. Mark gave me curious looks but said nothing.

The door into the loft itself was a slab of nondescript steel. I hauled it aside, and Mark stepped with me into darkness.

“Lights!” I called out in the loud, concise voice I’d been instructed to use.

The place came ablaze. The loft was palatial, almost ludicrously sumptuous, the brainchild of an interior design genius. The yawning cavern was braced with cedar beams, tiled with ebony ceramic, awash in tasteful art. The pricey furniture, arranged to the precise millimeter, was of exquisite style.

“Good God,” Mark said, turning in a dazed circle. “Does someone actually live here?”

I told him who.

He whistled, impressed. He turned to me, grinning. “And what, my lovely girl, are we doing here?”

I went to him and kissed him, feeling his eager response, then took his hand again. He probably thought I was taking him to the sultan-sized bed that dominated a dais to our right, but instead I led him to the loft’s exterior wall. Set into a chrome frame was a massive rectangle of thick tinted glass, as big as a theater screen.

He peered through the glass. Across the way was the open roof of the dance club, where lights spun and shadowy bodies gyrated. The area looked to accommodate at least fifty people. Another shiver whispered over my flesh. I felt dampness on my hands, and my breath shortened.

“Can they see in?” Mark asked, starting to frown. The whole loft lay exposed to the window-wall. Mark and I stood front and center.

I slid my arms around him. I kissed his throat. “No,” I said huskily. “The glass is polarized. This whole place is high-tech, practically science fiction. The gadgets are voice-activated. If I call out the right word, the glass turns clear.” I drew tighter to him, feeling my heart thump against his firm pectoral muscles.

I saw understanding come to his eyes, along with apprehension and — I hoped — a bright glint of excitement. I pulled his mouth down toward me. His tongue moved urgently against mine as I hurried to unbutton his shirt. My toned body pressed his, and I felt his cock swelling in his pants.

His strong hands peeled off my jacket. I stumbled as I stepped out of my shoes, but he caught me, pausing to squeeze my breasts through my crisp blouse. I grabbed at his slacks and unzipped him. When I reached in for his cock, he sighed with pleasure. I gripped that sweet girth, loving the feel of the soft, tiny veins and the underlying steely hardness.

We fairly tore away the rest of our clothes. We were still standing in front of the wide glass, able to see out but invisible to the many anonymous club-goers on the roof opposite.

I turned fevered eyes on Mark. “What if those people over there could see us? See us naked. See us fuck! I — I want that, Mark. I want strangers to watch us.”

Having made my confession, I felt faint and vulnerable. As aroused as I’d felt these past days, the anxiety had been awful. It had been difficult to admit what I wanted to myself. Now I’d revealed my secret need to the most important person in my life.

For a long desperate moment, I gazed at Mark’s blank face. He turned toward the rooftop, and his eyes appeared terribly far away. But when he looked to me again, his handsome features were twisted and hungry.

“I want it, too, Felicia.” He barely spoke above a whisper. “I thought about those two in the hotel room the whole time I was away. I couldn’t help it. I — I don’t even understand why I find it so exciting.”

A hot joy rushed through me. My pussy streamed. My nerve endings crackled with lust.

I called out, “Clear!”

A mechanical hum emanated from the chrome window frame, and the huge magical pane of tinted glass became suddenly and completely transparent.

We stood frozen a moment, but it wasn’t fear that held us. I answered the feral grin that sprang to Mark’s face with one of my own. Light glared on us. We were stark and exposed, emblazoned across the night, in full view of half a hundred nameless persons.

I had never been nude in front of that many people. But I wasn’t content just to flash my skin. Letting loose a growl, I dropped to my knees and, without any niceties, took Mark’s cock in my mouth. I didn’t give him the teasing lollipop treatment. I encircled his fuckstick with my lips and swallowed him whole. His thick cockhead pushed into my throat.

Mark cried out again, but this time it was more of an animalistic yowl. I plunged my mouth up and down on his erect staff. My tongue lashed the veiny shaft. I savored his taste, his texture. I placed my hands on his muscled thighs.

His fingers wound into my hair, and he started face-fucking me with gusto. I took every inch of him. His big balls slapped my chin. I kept up a helpful suction, cheeks caved in around his length.

I heard his grunts and tasted the dewdrops of his pre-come. But all the while I was acutely aware that I was sucking cock in full public view. Unable to turn my head, I strained to see peripherally but managed only double-images of the club’s busy roof. The need to see — to look back at the watching people — was fantastically powerful.

As if sensing this, Mark wrenched his cock from my mouth, seized my shoulders, and pulled me to my feet. Panting through wet lips, I looked out at the night. On the roof, the dancing commotion had stopped. I saw figures gathered at the near edge. We had our crowd.

That I couldn’t make out their shadowed faces only added to the glorious anonymity of this audience. Mark and I were on display, fully lit and exposed, and the people watching us could be anybody. They were absolute strangers.

I felt the many eyes on us, on me.

Mark, I realized only now, had slid to his knees and was nuzzling apart my thighs, nosing into the damp fuzz of my cropped pubic hair. I set my stance as he angled his head, extended his tongue, and plunged it into my waiting cleft.

The shock of contact was beautiful. It sent an electrical snap through my limbs. Mark’s mouth was eager and skilled. This was one of the sexual acts I’d had to encourage him to perform early on in our relationship. He had taken to it readily. Now I understood his true sexual depths, the simmering needs that must have been waiting under the surface all along.

He speared me with his tongue, slavered my swollen clit, and generally feasted on my pussy. I grabbed a fistful of his full dark hair and ground myself on his face, smearing my juices on him.

I looked again to the crowd. It seemed that more shadowy people were cramming the roof’s edge. I imagined the word spreading throughout the hipster club, sweaty dancers coming up to see, eyes going wide at the brazen sight of us. I thought of couples holding hands tightly and breathing in unison, sharing this unexpected debauched scene. I pictured single men and women securing these erotic images in their memories.

And surely there were some watching us this very instant who were now discovering a new sexual thrill. They found that they liked to watch. And some must be thinking: I want to do what they’re doing! I want others to watch me.

I humped Mark’s face shamelessly and kneaded my breasts with my free hand. I rode the exultation, pleasure welling up, becoming a sweet crescendo, until I poured my ecstasy into his mouth.

He stood, face dripping, eyes bright with a wild light. I turned and planted my palms on the glass, spreading my legs, thrusting out my ass. He moved in behind me. He put his thick cockhead to my oily slot and drove deep into me.

My breath came in heaves. I looked straight out at our audience. I could hear nothing through the glass, but I saw fists pumping in the air and imagined the cheers. Mark wasted no time. He fucked me hard. His strong leg muscles flexed against the backs of my thighs. Vise-like fingers gripped my hips. His cock plunged into me, provoking new pleasures with every manly inch he gave.

I heard animal cries turning to words. For a frenzied second I thought I was making the sounds, then I caught the masculine tone.

“Watch — watch. Watch me fuck her!” He was saying it to our audience. He pounded me in front of them. I felt the impact in my bones.

More people had come to the roof. I was sure of it. They swam in my vision. I was a performer on a stage. Mark was my partner. These spectators were celebrating our act, but I would never know them and they would never know us.

Joy exploded within me. It raced out to my fingertips where they had whitened on the glass. I felt it reach my toes where they were planted on the floor. My whole being roiled with rapture.

I let the crowd see this ultimate pleasure. I beat the glass with my fists. I put back my head on a straining neck and howled. The cry echoed throughout the luxurious canyon of the loft.

At that moment, Mark’s hot liquid delight erupted inside me. I met his jets with another quaking orgasm, my body trembling madly around his spearing cock. His fingers clutched my hipbones. He, too, yowled out his victory.

Reality whirled around my skull. From somewhere very distant I thought I heard cheers, applause, the appreciation of a sated crowd. But it couldn’t have been. The magic glass was too thick.

My sweaty forehead fell against the cool pane. I had to draw several breaths before I could call out, “Tint!” I blinked dazedly against the darkened window.

Mark withdrew his cock and took me into his arms. I was shaking with the aftermath. So was he. He kissed me gently. I wanted to thank him, and he probably felt the same impulse. But words weren’t necessary. We had performed the supreme act of exhibitionism, and we would never be the same again.