He didn’t offer to call me a taxi. He didn’t offer to drive me himself. He looked amused by the fact I was leaving, as if he knew something I didn’t.

I knew it was abrupt, telling him just after he’d watched me come. But I couldn’t stay any longer. I was already at risk of losing the person I was, turning permanently into this new woman I barely knew.

He had put something in my ass. It had felt incredible. It shouldn’t have done. I shouldn’t have been happy to perform for him like that, to keep silent just because he had asked me to. But I’d done it. And as soon as it was gone, I had changed.

It was the same after he’d tied me to the table. I felt guilt and shame wash over me. I shouldn’t like it. It wasn’t supposed to feel good to flaunt my body at him like that, to sweep all modesty aside in pursuit of an orgasm. I hadn’t even thought about saying the safe word, I was too turned on.

I had no idea what arrangement he was talking about. It didn’t matter. I had to go home or I’d never ever want to leave. I was already thinking about him far too much. He didn’t even know who I really was, he just thought I was this Ms X woman, someone who was perhaps wondering what had happened to her party invite.

I wanted to say goodbye to him. I wanted to make a big speech about how he’d changed my life, how I’d never forget him.

“Bye,” I said on the doorstep.

“Stay safe,” he replied, pushing the door closed.

My feet were hurting by the time I got to the end of the drive. I thought about taking them off but decided against it, the ground was wet and my feet would only get cold and hurt which wasn’t a huge improvement. Walking home in the dark was not fun. Why hadn’t he at least offered me a lift? Had I annoyed him by saying I needed to go home?

I still hadn’t switched my phone on. I’d forgotten all about the fact I never paid for the taxi on Friday night, he’d paid for it, Arthur Carrington, the rich twat, the handsome, sexy devil that he was. I had thirty pounds and enough battery to be driven home. By the time I realised I still had the money I was already home and by then I had much bigger things to worry about.

I was walking past the park when it happened. A hand reached out from a hedge and dragged me off the street.

I tried to scream but by the time I got the cry out, he had me off balance, one hand around my neck, gripping me so tightly I could barely breathe.

“Don’t make a sound,” he hissed in my ear.

I tried to scream but it was muffled under his hand, my body red hot as I fought to free myself, losing a shoe in the struggle.

He pulled me deeper into the park, stopping in a copse of trees, groping my chest, tugging at my nipples before ripping my dress away from me.

I did my best to cover my body but he ignored my attempts at modesty, pushing me down onto my knees. I looked up, about to punch him somewhere that would send him to the floor. But then I saw who it was.

“You,” I said, amazed to see Arthur looking down at me, uncontrolled lust in his eyes. “It’s you.”

“Open your mouth,” he said, his cock already in his hand.

Suddenly it all made sense. This was the arrangement. This was what he had planned for Ms X. He wanted to fulfil a fantasy but with someone who knew what was coming. Then I came along and ruined things by being genuinely scared as he’d pulled me into the darkness and pushed me down to the ground.

I shivered as a breeze hit me, suddenly aware of the cold. “Open your mouth,” he said again and this time I obeyed him.

My heart was still pounding. I had no idea what he might do to me if I refused. He looked capable of anything.

His cock slid in past my lips, the burning heat making my body react, making my pussy wet as I thought about that cock being inside me. Would I be able to stop him? Did I even want to? What was wrong with me for even wanting this?

He filled the back of my throat, leaving me fighting for breath as he started thrusting into my mouth, not gently, using me for his pleasure.

He pulled free all of a sudden. I gasped for breath as he dropped onto me. Somehow it was more obscene that I was naked and he was dressed apart from his cock which was already nudging my clit.

He forced my legs apart, thrusting straight up into me in a single motion. I cried out, the noise stifled by him placing his lips on mine, swallowing any noise I made, his tongue diving in, exploring my mouth.

He pulled back and thrust again, moving faster, grinding against me, my body reacting by growing hotter, a tingling spreading through me.

The grass was wet under me but I didn’t care. What I cared about was being turned onto all fours as he hissed, “Don’t move.”

Then he did something to his cock, next time it was on me, it was slippery as anything. He eased it past my pussy and I knew at once what he was going to do. Would it fit? Should I let him do it? What would he do if I told him to stop?

The safe word was on the tip of my lips but then the head of his cock nudged into my ass and the word fell away. All I could think about was the feel of him, the fleshy warmth as he thrust his way into my ass, driving home a second later and making me moan into the ground. “You bad girl,” he said, smacking my buttocks as he began to thrust. “Pretending not to want this.”

“I’m sorry,” I muttered.

“What do you want?”

“You to fuck me.”

“Say it.”

“Fuck me, please fuck my ass. Come in me, please.”

He chuckled before starting to thrust faster. “God, you’re so tight,” he said.

I never thought it was possible but him in my ass was enough to make me come. He was slamming so hard into me, I lost any semblance of self control, screaming at the top of my voice as an immense orgasm tore through me.

He came a second later, the feel of his cum in my ass making my climax all the more powerful.

He slid from me slowly while the contraction of my orgasm were still fading away. I slumped onto my front as a voice shouted in the distance. “Who’s in there? What are you doing?” The light of a torch swept past us.

“Come on,” he said, grabbing my hand and pulling me up. I was in no fit state to run so he picked me up, carrying me to the entrance to the park where a car was sitting waiting for us. He threw open the back door and shoved me in, passing the remains of the dress in after me.

A security guard with a torch was just emerging from the park as he climbed into the driver’s seat and screeched away.

I lay back, closing my eyes and trying to process what had just happened.

I had been walking along the street one minute. The next I was filled with his cum, aching all over, grass on my knees, sweat coating me, my head dizzy from the sheer force of my orgasm, my ass aching with the absence of him.

“Where do you live?” he asked.

“Down there,” I said, pointing weakly out of the window. “Number thirty-six.”

“That was the best sex I’ve ever had,” he said in response, slowing the car down as he turned onto my street. “Did you know that? Can I ask you something?”

“Sure,” I said, forcing myself to sit up, ignoring the deep ache in my ass. “If you turn the heating up a bit.”

“How long have you worked for the agency?”

I couldn’t answer. I couldn’t lie to him, not after what we’d just done. I couldn’t tell him I wasn’t his Ms X, I was just a girl who’d cheated her way into his house and like Cinderella, it was now gone midnight and I needed to get home before the spell was broken.

He’d just fulfilled a fantasy I’d had for years, being taken at random and ravished. He’d done it in the most perfect way, taking away the risk but not the excitement. I had loved every moment, once the terror had subsided of course. But he didn’t know the truth. He thought I was just a party guest, and by the sounds of it one he had hired to submit to what he’d just done.

The car stopped. I was home.