A couple of weeks after I’d punished Petra she got ill. She called me twice. The first time was the official one, an employee calling her manager. The second call was from Petra the Cum Slut.

After work I headed over to her flat. Jess greeted me at the door to the building. She wore dark blue jeans and a white strapped top. There was a small hole in it, near the centre, and I could see her purple bra. “Hey, come in.”

I followed Jess up the stairs. We talked. We had never talked much. At our first meeting I had been getting head in the living room. Jess entered, on her way to the kitchen. She was completely unperturbed by what was happening. She came back, with a glass of water in hand. “Make sure she swallows it all. I don’t want to have to clean cum off the carpet.”

I pushed Petra’s head down. “She will. She is a good girl.”

Jess smiled and left us alone. It was as if watching her roommate give head was the most natural thing in the world.

When I quietly entered Petra’s bedroom she was sitting up in bed. Her eyes were heavy with her cold. She looked up from her phone and smiled. “Good to see you, Master. Don’t get too close; I don't want you to get this.”

“I brought you these.” I held up a box of chocolates.

“That’s so sweet!” A part of her was still surprised I cared for her always, even when we weren't going to be having sex. “You’re so good to me.”

Bringing chocolates was the bare minimum, as far as I was concerned. “You’re worth it. You’re worth a whole chocolate factory.”

She giggled. It became couched. “Toss the box on the bed.”

I did as she asked.

“I have a surprise for you too.”

“You do?”

“Yeah. Look in my underwear drawer.”

I was no stranger to Petra’s underwear drawer. When I slept over she liked me to pick out her clothes. I opened the drawer. Amongst her colourful collection there was an envelope. “What’s this?”

“Open it.”

I did. I read the letter. “You know it is not April Fools Day?”

“It is no prank, Master. I always said it could happen. Now is the time. And haven’t you two talked about it?"

“We were just joking around.”

“Maybe you were. Baby, you have done the boyfriend thing. Now you can do the master thing. There is a horny girl in the next room."

I gulped. “You’re okay with this?”

“Are you too much of a pussy to do it?”

I smiled and raised my eyebrows. “Do you want to apologise for that remark?”

“Nope. And you can’t punish me. I’m sleepy.” She pulled her teddy bear towards, ending the discussion.

I left Petra’s room a little bewildered. Our relationship was hardly conventional, and yet fucking her roommate, and in the next room no less, felt like a betrayal. I wanted to, though. Did that make me a bad man? The question only lingered for a couple of seconds. Other body parts were starting to express an opinion.

The letter described what Jess wanted. I gulped and knocked on the door.

“Come in.”

Jess was sitting on her burgundy bedding. The window was framed by flowery curtains. On seeing me she smiled, reached over the bed, and placed her phone on the bedside table. “What do you think of the curtains?”

I told her they were not my style. That was the code phrase from the letter.

She jumped to her feet, taking a step forward. “It must be hard for you not having your cum slut available.”

“Luckily I have you.”

She scoffed. “You really think we’re going to fuck? I was just fooling around.”

“I wasn’t.”

She stepped back from me. “I don’t think this is a good idea. What will Petra say?”

“Her opinion doesn’t matter. Get on your knees.”

“What the fuck is wrong with you!” She stepped back. She was stopped by the bed.

“You know you want it!” I stepped forward.

“I do not.” She was shaking slightly. She was unnervingly convincing.

She took a step forward and whispered in my ear. “Use me. Do what you want.”

I put one hand around her neck. The other I placed atop her head. “We are going to have some fun.” I pushed her head down.

She went to her knees. I hadn't used any force, but she played it well. “Please.”

I reached down cupping her breasts. She let out a little gasp. My other hand held her in place. She struggled, without force, imitating trying to stand.

The top would have to go. I slid my two index fingers into the hole and pulled. There was the noise of ripping fabric. The top came apart; I tossed it away. “That is better, isn’t it?”

Her perfect breasts rose and fell in the purple bra. It was the same style, if not the same one, that Petra had bought for seducing me. My eyes locked with Jess’s. She licked her lips and winked. “Please. I… I’m not…”

“Be quiet.”

She cursed at me, but one of her hands was pulling down the zip of my jeans.

I undid the top button, and wriggled them to the floor. I kicked them away. My cock strained against the black fabric.

“You expect me to put that in my mouth!”

“That is exactly what is going to happen.”

“No. You’re a fucking coward. You’re only a man because Petra took pity on you.”

The words stung, even if they were part of the game. “She knows her place. It is time you learned yours.” I slapped her.

“Pussy! That didn’t even hurt.” She stuck out her tongue.

The letter said to be rough, but I didn't want to actually hurt her. “I think you want to serve me.”

“You don’t have the stones for this.”

I kept one hand on her head. With my free hand I yanked my boxers off. My cock was rock hard, and only inches from her lips. “Open.”

She ran her tongue across her top lip. “Bastard!”

My free hand grabbed a clump of curly bleached blonde hair. I pushed her head. “Oh put a cock in it!”

She smiled. Her face cracked into a smile. “Very good...I mean you bastard!”

“You’re talking too much.”

“Don’t you fucking dare!”

I brought her head down onto my cock. She slurped and sucked. Her hands gripped my legs. I held her down. I didn’t know how much she could take. I wanted her to decide. A few, maybe seven, seconds later, she took a hand away.

I let her go. “Are we going to have a problem here?”

She took a moment to catch her breath. “No. Sir.”

“Good girl. Continue.”

“You’re still a bastard.”

“Shut up!”

I slid my hands into her hair, one on each side, and let her set the pace. Her lips slid over my cock. She sucked the tip, went down my shaft, and moved back and forth. My arms moved with her. The only time she stopped was to curse at me.

“You are where you belong.”

“Fuck you!” She gave me the finger.

I moaned.

She swirled her tongue around my cock. Her tongue stud made the whole thing even more amazing.

“You’re a good cocksucker!”

“This is all you get!” She spat on my cock, and rubbed her saliva down it. “Asshole.” Her other hand reached into her shorts and she moaned.

“What a wonderful idea.”

She looked up at me in surprise, and shook her head.

I moaned. She sucked. I was getting closer. I took control and pushed her head down. She jerked in surprise but didn’t resist. She gripped my legs, her nose touching me. Suddenly I started to cum. It came out in short spurts.

Jess gagged and swallowed.

I held her for a second more. Her hands still gripped me. She looked up at me. Did she hate me? Had I gone too far? No. Her face broke into a smile.

She jumped to her feet and threw her arms around me. “That was fucking amazing!”

“You were fucking amazing!”

“Petra said you were uneasy about being the bad guy, but that was great.”

“You were great!”

Jess blushed. “You were right. I am a good cocksucker! We’re not done, are we?”

“I hope not.”

She got back on her knees and kissed my cock, cleaning up a dribble of cum. “Remember, do what you want.”

“Why don’t we just fuck as Jess and David?”

“Next time. I want to be dominated. Slap me, insult me, treat me like I am nothing. I know I am safe, but make me think I might not be. Can you do that?”

“Yes.”

She shook herself, getting back into character. “Bastard!”

“Get on the bed!” I ordered. “On your back.”

“I won’t.”

I reached down and, gripping her under her arm, pulled her to her feet. “You will.”

“I won’t.”

I slapped her left cheek.

A tear trickled down her face. She pressed her hand into my chest, showing a thumbs up. She didn’t move.

I slapped her again. “You will.”

“Yes, Sir.” She tried to sound broken and sad, but a little jump of excitement betrayed that. She got onto the bed and lay on her back.

“That’s better.” I got onto the bed and ran my hands up her legs. She was shaking. I reached for the zip on her shorts and pulled it, and them, down. I tossed them behind me. She was left in just her panties. They were white with frolicking pandas on them.

“Please,” she said.

“Be a good girl.”

“Don’t.” She bit her lip and winked.

I had wanted to fuck her for so long. My cock was twitching, almost hard again. I pulled her panties down. She lifted her hips, a signal that all was well. “You’re mine.”

“No.”

“Yes.”

I pushed her legs aside. I hardly touched her, but she moved them like they had been wrenched apart. She had about the same build as Petra. Her boobs were the same perfect peaches, and her pussy was shaved bare.

I placed one hand on her stomach. In our game I was holding her down. In reality I was going to drive her wild. She wriggled. With my free hand I started to slowly finger her.

“Fuck!” she gasped. “Fuck you!” She slapped the top of my head.

“Stop that.”

“Yes, Sir…” Her voice quavered; she stroked the top of my head.

I pressed my lips to her clit and hummed.

She let out quiet gasps. She thrashed a little. I rose up a little, my erect cock touching the bed. I slipped into her. Her pussy was dripping wet. I started to thrust, pushing her down into the bed.

Her hands scratched at my back. The letter had said her limits. We had not discussed mine. I didn’t care - if she wanted to draw blood, so be it. “Oh God.”

“Shit!” she said. “Fuck!”

I let out a moan as I took her. She was still thrashing under me. I said nothing. I tried to hold back; I didn't want to cum just yet.

“Fuck it!” Suddenly she grabbed the back of my head and pulled me down. Our lips met; our tongues slid across each other. I lost my rhythm, but only for a split second. My hands played in her hair as she ran her fingers through mine. Suddenly she tightened around me. My cock bucked as I shot my bolts into her.

Our lips parted. She panted looking up at me. “Fuck. That was… fuck.”

I moved off her and lay next to her on the bed. “That was amazing.”

“Thanks for indulging me.”

“Thanks for the winks and smiles. Sorry if it broke the illusion.”

Jess shook her head, smiled, and wiped her brow. “I’d rather have a concerned guy than one who gets carried away. For a moment I wasn't sure you were going to let me go. It was so hot!"

“I wanted you to signal.”

Jess laughed. “Nice. Seeing what I could take? Next time we fuck it can be your way.”

“Next time?” I said. “I don’t know if Petra will allow that.”

“Allow?” Jess said. “Aren’t you forgetting she is your cum slut? If you fancy fucking me…well, I get fucked.”

“Sounds like you want to be a cum slut too.”

“Maybe,” she said with a wink. “Next time you could take my virgin ass.”

“I thought you didn’t do that.”

“Can’t a girl change her mind? I meant not when you were the bad guy.”

“Ah,” I said. “Well, when you’re ready it will be an honour.”

Jess giggled. “I look forward to it.”