I knelt watching my sister doing pilates in the middle of the living room. I handed her equipment as she asked for it. Of course this was as much a treat as a chore, watching her in her tight workout clothes, stretching and flexing and sweating.

She stood and sigh. “Ah! That felt great!”

She pulled her shirt off over her head and then dropped her shorts. Now came my favorite part!

“Come on over here and wash me, slave.”

I eagerly crawled to her and started lovingly tongue bathing her. I worked my way up her long, beautiful legs and started licking her pussy.

“None of that now.” She pushed me away.

Disappointed I crawled around to lick the sweat off her ass. I worked my tongue all over her ass and back then went back around to lick her stomach and finally her luscious breasts. They’ve definitely gotten bigger since the first time I saw them and I licked and worshipped them as long as she let me.

Then she put her hand on my forehead and pushed. She had her foot behind my ankles and I stumbled and fell right on my ass.

She giggled, looking down at me. Then she dropped down and straddled me stomach. “Hey Stevie, let’s wrestle!”

Naked wrestling with my Mistress and sister sounded fantastic but, “I can beat you, Mistress. I hope you won’t get mad.”

She chuckled. “We’ll see.”

So we started laughing and rolling around in the cleared space between the furniture. I was much more interested in rubbing against her beautiful body than in winning of course. Eventually I let her pin me, holding my hands above my head.

“Stevie, you’re not even trying. Do it right or I’m gonna have to get mad.”

“Okay Mistress.”
I bucked her off me and tried to grab a hold of her arms. It wasn’t as easy as I expected. She was very quick and surprisingly strong. Still, it wasn’t long before I had her pinned with no hope of escape.

“Got you, Mistress!”

“Really?” She growled.

She drove a knee up into my balls with all her strength.

I saw stars and almost passed out. I rolled over into a ball, cupping my damaged balls. I couldn’t even get a breath to scream.

She rolled me onto my back and pressed my shoulders down as well as she could.

“I guess I win.” She giggled.

I lay there in agony while she took a real shower and changed. Then she came back into the room.

“Okay slave, get up and clean this stuff up.”

“Fuck you, Shannon!” I gasped. I couldn’t believe I’d just said that.

“What did you just say??” She sounded more shocked than angry. “You clean up and then I‘m going to paddle your ass black and blue. And you won‘t be coming for a week.”

Shannon had whipped and spanked me lots of times and sometimes she’d gone too far but she’d never shown such a blatant disregard for my safety before.

“Screw this slave shit, Shannon! I’m done! I’m really hurt here!” I didn’t really mean that, did I? I loved being her slave!

Shannon was trembling with anger and/or fear. “Get over here!!”

She grabbed me by the ear and yanked me up. I stumbled up the stairs after her. She marched me into her room and shoved me into the closet. Of course I could have fought her but I’d been obeying Shannon so long it’s become habit.

She slammed the door and I heard her dragging the dresser in front of it.

“And you will stay in there until you remember the way things are around here, slave!”

I rattled the knob and pounded on the door.

“Let me out, Shannon!! We‘re not playing these damn games anymore!!”

She paid no attention. I heard her go downstairs and start moving the furniture back herself.

I was in the cramped closet for several hours. My balls still ached. I pushed against the door as hard as I could but she had wedged it shut somehow.

She came back into the room and turned on some music.

“Shannon, you’ve got to let me out. Mom will be home soon!”

“I don’t fucking care, Steve! You will stay in there until you remember who’s in charge here!”

A while later I tried again.

“I’m really sorry, Shannon. You just hurt me really bad. I still want to be your slave and I’m sorry I talked back. You can punish me later. Just please let me out now. Mom will be home any minute.”

She turned the music up and didn’t say anything.

A few minutes later I heard Mom’s car and heard the door open and close downstairs. Oh shit!

Shannon turned the music down and a moment later mom knocked oh Shannon's door.

"Come in."

I listened carefully with my heart pounding..

“Hi Mommy.”

“Hi Baby. Where’s Steve?”

“He went to Tom’s house. He said he might spend the night. I guess he’ll call you later or something.”

“His car’s still here.”
“Yeah, um, Tom picked him up.”

She didn’t sound very convincing. I hadn’t talked to Tom much at all since I’d started this thing with Shannon but what if he picked tonight to call?? This was such a bad situation!

Shannon moved in and out of her room throughout the evening. I guessed that my best bet was to be quiet and eventually she’d let me out.

Finally I heard her pulling the dresser away and she opened the door. She held my belt in her hand and she was naked from the waist down. She looked scared but determined. Well, this was it. Would I shove her out of the way or would I continue to do what she said?

I wasn’t sure until she straddled my face. “Open your mouth!”

I obediently opened my mouth and she pissed long and hard into it.

I had to go pretty bad myself. And I was dying of thirst and getting pretty hungry.

She handed me my cell phone. “Call mom.”

I called mom and told her I was spending the night at Tom’s house.

Then she tossed in a bottle of water and started to close the door.

“Mistress, wait, please. I’m really, really sorry. Please let me out.”

“I forgive you, Stevie. But you need some more time to think.” She closed the door but didn’t put the dresser back.

I sighed and drank the water. It was only half full. Then I pissed into the empty bottle.

I got as comfortable as I could and prepared for a long, boring night.

I heard Shannon leave the room and I turned the knob experimentally. As I’d expected nothing was keeping it closed. I opened it an inch and peered out into her room. I really didn’t want to be in here but Shannon wanted it. I closed the door and squirmed around uncomfortably.

Shannon came back in and a moment later she opened the door.

“What have you been doing, slave?”

“Nothing Mistress.”

She slapped me and held up a toothpick. “You’re lying to me, slave!”

She must have had that balanced on top of the door! I had to admire her ingenuity even as I was terrified of what she would do now.

“I-I’m sorry, Mistress! I only opened it for a second, honest!”

She went and dug out her shiny new handcuffs. She chained me to the shoe rack bolted to the wall.

“You just bought yourself another day, slave. You will stay here and think about what you’ve done and I better not catch you jerking off in here.”

She slammed the door. Another day?? How long was she going to keep me in here?? What would she tell mom?

Well, she’d made up her mind. There was nothing I could do.

Shannon opened the door to use me as a toilet a few times but she never said a word to me.

This was just terrible! Solitary confinement. I never stopped to think about how bad it would be. I really, really wished she’d just whip me and get it over with.

In the morning she gave me a new half full bottle of water. I wanted to beg to be released but I was determined not to make her angry again. I just took the water and thanked her profusely. She didn’t respond and then I was back in the darkness.

For long, long hours nobody was home at all. Finally I heard the front door open. Shannon was home! She would come open the door and piss in my mouth! Then she might put on some music! I would just be happy to listen to her moving around the house, I was so bored and lonely!

I heard her coming up the stairs. I got on my knees eagerly. The cuffs made it very awkward but I managed to kneel there waiting for her.

She opened the door. I smiled up at her. “Welcome home, Mistress!”

She lifted her skirt and thrust her crotch in my face. “Lick.”

I couldn’t believe my good luck!! I must be forgiven!

I quickly started licking my sister’s delicious pussy, doing everything I possibly could to satisfy her. She put one leg over my shoulder and wrapped it around my neck. Then she crammed my face up into her pussy. She was riding my mouth and nose and I couldn’t breath at all. But I kept on licking.

I was running out of air! I tried not to fight her but eventually I did. Between the handcuffs and her leg around my neck I couldn’t move very far. She had all the leverage and I hadn’t even eaten in more than a day. I was getting weaker and I heard Shannon moaning in orgasm as I blacked out.

When I woke up I was again in the darkness of the closet and still chained to the wall. Apparently my punishment wasn’t over yet.

I spent another long, terrible night in the closet, cherishing Shannon’s short, cruel visits. The next day after school she got off on my face while smothering me again.

That night I lay there feeling all my cramps and hunger pains and a long way from sleep. It was so quiet in the house I could hear Shannon breathing softly in her sleep. I leaned against the door and put my ear to the crack. Oh how I wished I could be with her out there! Without even being aware of it I started jerking off thinking about my amazing sister. I looked down at my hand, moving apparently on it’s own.

“Stop damn it!” I whispered. “I’m not supposed to do this!”

I made myself stop jerking off. The urge to come was almost as bad as my hunger now!

I heard Shannon turning over in bed.

“I miss you, Mistress. I’m really, really sorry.” I whispered.

Three days, I felt like I’d been in here forever!! What could she possibly be telling mom??

That day after school when she opened the door I was on my knees begging.

“Please, please let me out, Mistress! I’m sorry! I’m really, really sorry! Please punish me any way but this!”

“It’s alright, Stevie. I think you’ve learned your lesson now.”

She unlocked the handcuffs and I fell out of the closet, hugging her legs. I kissed and kissed her shoes.

“Thank you, thank you, Mistress!! I’m your slave forever! Anything you want! I’m all yours!”

She laughed. “That’s right, big brother. Now you understand.”

That night we lay in my bed together. I was tied to the bed of course, almost asleep.

Mistress had been very kind for the rest of the day. She let me eat and bathe and even jerk off once. And now she’d just fucked me twice. After my three days of confinement I was in heaven.

Shannon took my balls in her hand and caressed them gently. Obviously she thought I was already asleep. I didn’t say anything. I wondered what she was going to do to me now.

“I’m sorry I hurt you, Stevie.” She whispered. “Goodnight, big brother.”

She kissed me on the cheek and left the room. I opened my eyes and tears fell down my cheeks.