I awoke the next morning still lying on my sister's behind. I was feeling happier since I had pleased my sister, and she showed me pleasure.

I rolled onto my side and opened my legs, starting to rub my little pussy looking at my 15 year old sister's butt.

Cassy started to wake up, and rolled onto her side facing me. She smiled for a moment before reaching out and grabbing my right nipple hard and twisting my whole little breast.

"YYEEOOOWWWW," I yelped in pain, and tried to pull away from her.

She had my nipple in a death grip. "You may have enjoyed yourself last night, but I will have none of your naughty behavior in my bed, GOT IT?"

"I...Ye...ARF, ARF, ARF!" I shouted.

She released my nipple and left me there grabbing my poor little tit. I confused about what had just happened. Last night my sister was treating me almost like a lover. Well at least she had been nice to me and kissed me I guess, but today she was starting back off as her cruel self.

I heard the shower being turned on, and realized my sister was taking a shower. It confused me as she always liked to pee on me first. Not that I minded not being peed on, but a part of me was getting used to it, and I suppose some strange part of me felt that if she didn't do it, then I did something wrong.

I crawled off the bed, and sat on my hands and knees in front of the bathroom door.

When my sister finally came out of the bathroom, she was wearing a t-shirt and jeans. She saw me sitting there and bent over to remove my collar, and pulled my 'tail' out of my butt.

She tossed them both in her room onto the bed across the hall. "Stand up, take a shower, use the toilet, and come down for breakfast," She told me as she walked away.

I was totally confused now. She said all of those things like she wanted to have a mother daughter 'talk' or something. Did I do something wrong? Was she regretting the things she was doing to me?

I felt strange as I was taking my shower. Were all of the things now between my sister and me over? I didn't know, but I took my time in the bathroom. I heard my sister call to me saying breakfast was ready, so I walked to the kitchen.

Cassy Glared at me as I entered the kitchen. I heard her sigh, and saw her shaking her head.

My eyes grew wide in shock as I realized what I did! I quickly dropped to my hands and knees shacking in fear of what this was going to cost me.

"Well, there are a few problems this morning, if you can name them, I won't punish you for them." She said. "Name them...Speak girl."

I was racking my brain trying to figure out what I had done wrong. I started breathing faster.

"Um..I..I didn't crawl after I was done in the bathroom?"

"That's one," She held up her hand with 4 fingers up, bringing one down.

I had to figure out what the other 3 things were?

"Uh..Err..I didn't..Uh..I was playing with myself this morning?" I asked unsure.

Cassy just slipped another finger down a stared at me with a look of curiosity, not anger.

I couldn't for the life of me figure out what else I did wrong. "I'm Sorry, I'm not sure," I said sadly.

She looked a little more sternly at me. "First, you walked in her on your feet...Puppies don't walk like people do. Second, you were playing with yourself on my bed without permission to do so. Third, you didn't give me an orgasm last night, or this morning."

'Oh no', I thought.

"And fourth, you didn't put your collar and tail back on after your shower."

'Shit', now I felt really stupid. I should have known all of these things by now. I was caught up in thinking that my sister wanted to talk to me like an equal, but she was just leading me to a false sense of security.

"Eat your breakfast before it gets to cold, we will figure out what to do with you later." She told me, pointing to the dog bowls.

I went to the bowls, and started lapping it up. She took the time to make my favorite breakfast again. I ate it all like it was the last meal I would ever get.

I got a surprise while I was eating though. While I had my face in the bowl, my sister walked up behind me and shoved 'my tail' back into me. It surprised me more than hurt me, but it still hurt.

After I had lick my bowls clean, she put my collar on me and lead me over to the couch to watch a movie. Of course I had to be her footstool for the first half of the movie, and then she surprised me by patting the couch and said "up girl."

I looked at her puzzled, but she just said it again.

I did as she asked, and climb slightly over her lap as directed. We finished watching the movie like that. Me lying over my sister's lap and her petting my head, neck, and scratching behind my ears.

As stupid as it sounds, I was in heaven. I completely forgot about her threat of punishment.

After the movie she took me out back, to lie around in the sun. I couldn't help but stare at my sister in her skimpy bikini. She brought me back to reality a couple of times by slashing my butt with a stick before throwing it, reminding me that I was a dog.

After chasing a stick for an hour, I laid down next to my sister's lounge chair. I didn't notice that my sister tied the leash back onto the collar when I heard a sound.

My head shot up so fast to see what it was, and then I heard my sister's friend Heather call to her.

"Cassy, are you home?" She called.

I started to panic. I got up to run into the house, but was pulled back onto my butt forcing the plug in there to be pushed in and up. It hurt so bad that I let out a little yelp of pain.

"Heather, I'm out back," Cassy told her.

Heather was a ginger girl in all sense of the word. Red hair, green eyes, freckles. She was a taller girl, with a really bubbly personality. She was always nice, but there was a deviant twinkle in her eye, like she was always thinking about something that would cause trouble.

Heather came around the corner of the house and stopped dead in her tracks; eyes wide open, taking in every last bit of me.

"OH MY GOD!! Your really did make her into a dog!" She almost screamed.

I was so embarrassed, I started crying. I wanted to run and hide, cover myself, dig a hole and bury myself in it, anything to hide my shameful self.

"Of course, did you think I was kidding?" Cassy said to her.

Turning to me, Cassy said, "Is that any way a puppy greets a new person?"

I looked at my sister, puzzled, scared, and crying. I had no idea what she was talking about.

Then it hit me...And so did the stick in her hand. I was shaking my head no, and whimpering.

She smacked my ass again, "I said go say hello to my friend. And put on your happy playful self."

Humiliated beyond belief, I crawled to Heather on my hands and knees and started sniffing around her feet and yelping a bit. Heather just laughed at me.

As I got behind her, I lifted my head up under her short skirt and shoved my nose into her panty covered bottom, and started sniffing.

"AHHH, ha ha WOOOH, down girl...hahaha," Heather gasped and laughed above me.

"Lucy...Enough, HEAL!" Cassy commanded.

I was thankful to be able to pull my head out of my sister's friend's ass, as I crawled to my sister with my head hung low in shame and embarrassment.

"Sorry Heather, she gets really excited some times."

"It's ok, I was just startled, I might like a good tongue bath later. haha." She said, causing me to blush a bit.

They had me play in the yard for a while longer, fetching sticks and such while they talked. I was covered in sweat by the time Cassy said it was time for lunch.

"You need to go potty before we go in for lunch?" Cassy asked me. "It will be a while before you can go out again."

I did need to pee, badly. I just look at my sister, then to Heather, then back to Cassy whimpering, hoping she wouldn't make me do that in front of her.

No such luck for me as they both looked on. Cassy with a look of irritation as I took too long, and Heather with a look of festination and excitement.

I crawled to my tree and turned so my face was to them and lifted my leg.

"OH MY GOD! She really pees outside too?" Heather said before breaking out laughing again.

"Hey! Turn your ass around so Heather can see you doing your business," Cassy yelled at me.

I did as I was told, but had trouble getting the flow going. It was show humiliating to have 2 girls staring intently between my legs while I pee. Soon enough, I couldn't hold back and pissed.

They took me back inside, and Cassy started making a late lunch while Heather sat at the table talking to her.

Heather sat there with her legs spread open, and I couldn't help but stare at her panty covered crotch. She had cute white panties on with red and purple hearts all over them.

She was asking my sister about all the things I did, and what we have done, saying that it was too bad she didn't have a sibling that she could train to do these things so they could take us both out for walks and to the park. I on the other hand was very glad she didn't have a sibling with the way she was talking.

As I stared at her crotch, I noticed a wet spot forming. Then I heard my sister embarrass me further. "I think you have an admirer."

Heather looked down towards me and laughed. "OOOHHH, is this what you want?" She asked as she pulled the crotch of her panties to the side.

Cassy looked at her friend and giggled, then looked down at me curiously.

Heather sat there holding her panties to the side with one hand, and patted her thigh with the other saying, "Come on girl, come."

I crawled to her, noticing that unlike my sister, Heather was completely shaved. I started licking her noting the differences between her and my sister.

I couldn't tell which I liked better, hair or no hair, but my sister had a much sweeter taste, like peaches. Heather had a more tangy taste, not bad, but just not as sweet as my sister.

They kept talking as I ate her pussy.

"Oh, she is sooo good."

"Yeah, she is getting better, but she has some obedience problems that need to be worked out."

"Really? AAHH, OH, RIGHT THERE, YES..That's good..What do you mean by..OH..Need to be wooooorrrkked out..NAH."

"Oh she still needs to be punished from earlier."

"Do you....Aahh...Mind if I..I..OH GOD!" Heather grabbed my head pulling me forcefully to her pussy. I thought she was trying to pull my whole head in there as she covered my whole face in here juices.

My sister turned to look at her flush faced friend. "You want to help punish her?"

"FUCK YEAH!!" She said still shuddering against my face.

"Alright, but wait till we eat, I am starving." Cassy said, filling my bowls, and bringing a plate for Heather, and one for herself.

We all finished eating when my sister asked what Heather had in mind for a punishment.

"Hmmm, stand up Lucy," She told me.

I looked to my sister to see if it was really ok for me to stand up.

"It ok, you can do whatever Heather tells you to do," She said.

I was nervous as I got to my feet, wondering what my sister's friend might do to me. She just circled me for a moment like I was a piece of meat that she was going to devour. Then she ran her fingers through the 30 or so pubic hairs that I had.

"I have a great idea," she said.

She grabbed a towel out of a drawer and laid it on the table, and told me to hope on up. I had to lay with most of my butt hanging over the edge to avoid the tail being pushed harder into me. She grabbed my sister by the arm and left the room.

When they returned, they were both laughing. 'Not a good sign' I thought. My sister was carrying a bunch of stuff wrapped in a small towel, and Heather was carrying a tweezers, which she gave to me.

"I want you to pull out every hair on your pussy...One at a time," Heather told me.

My eyes shot open, and I almost shouted out 'WHAT!' I looked at my sister again, hoping this was a joke. Taking a punishment was one thing, but punishing myself??

My sister just looked back at me waiting to see if I would do it.

"Do it now, and hurry up, I don't want to waste our night," Heather said.

I took the tweezers from her with shaking hands. I looked at my hairs on my pussy and picked one and plucked.

I gritted my teeth shaking in pain as the first air came out. I never realized how much that could hurt. I did another 2 or 3 before I cupped my pussy in pain and shaking my head no.

"You better get back to work, cause you won't like it if we have to do it," Cassy said to me.

Shacking with tears starting to roll down my cheek, I got another 5 or 6 out before I couldn't bring myself to do any more.

"Alright, it looks like we have to do it," Heather said cheerfully.

My sister pulled me back flat on the table and tied my hands to the legs of the table, and heather did the same to my legs.

"Well since you don't know how to listen, we are going to show you what happens to bad little pups," Heather laughed.

"Oh Heather, before we begin, could you please give her your panties? It might get a bit loud without something in her mouth." Cassy said.

Heather just smiled and reached under her skirt and pulled her panties off, turning them inside out as she brought the crotch to my mouth.

"Just think about how you want to taste the real thing again when I finish." She smiled to me as she shoved them in my mouth.

I looked on in horror as my sister pulled out 2 mouse traps!

Heather started squeezing my little breasts till she had a firm grip around them. "Number one."

I was breathing hard and fast as I watched my sister set the first one and brought it to my little boob a and let it snap down on my nipple.

I screamed and thrashed as the pain shot through me. Then she did the same to the other.

I continued to thrash and scream, trying to dislodge the traps from my nipple.

"One more thing to place, then we can remove the rest of this hair," Heather said.

Through my tears I saw my sister hand a clothes pin to Heather. I was screaming and thrashing before I even felt the stinging snap on my little button.

I woke up to a splash of water on my face. "Oh good, your awake, I was thinking we were going to have to wait all night to finish." Heather said.

I didn't need to raise my head to know that they hadn't removed the mouse traps or clothes pins. The throbbing all over my body told me they were there.

I sobbed for the next hour as Heather removed all my pubic hair one by one. By the time she had finished, my whole pussy felt numb.

They took the pins and traps off me and I screamed at the new pain as the blood flow return to my nipples and clit.

They untied me and I slumped to the floor crying my heart out at the pain in my body.

"I think we might have gone a little far this time," Cassy said, helping me up.

"I know just what to do," Heather retorted. "Take her plug out and sit her on the couch."

Cassy did just that, and while I sat there crying, Heather climbed up to me brought her lips to mine. She kissed my crying face for a moment, and then started going lower. Licking my sensitive nipples, and lower still, till she kissed my very sore clit.

I gasped in pain as she ran her tongue across poor clit. I tried to close my legs, but heather held them wide open. She licked lower, and stuck her tongue as deep in me as she could. I gasped again, but this time in pleasure.

I could feel myself get wet at her insistent licking. It was making me feel good, and I slowly started calming down. Finally she returned to my clit, and although there was still pain there, I felt more pleasure. These sensations were completely foreign to me, and it did take long before I exploded into orgasm. Shaking my whole being into darkness once again.

When I woke up again, I felt weak. I struggled to get to my knees again. Cassy and Heather were in the kitchen.

"Sorry, you missed dinner, is there anything I can make for you?" Cassy asked.

She sounded like she was sorry they took it too far. Even Heather was looking down at the floor; apparently they had talked about things a bit.

I just crawled over to my food dishes and took a drink of water, then pushed my food dish across the floor with my nose.

My sister just smiled and cooked a can of ravioli for me and put it in my dish.

After I finished my dinner, I ran to the door and started scratching. They let me out, and I ran to my tree.

We played my games in the yard for a while, and Heather said she needed to pee. I looked at my sister wondering if she had told her that she usually pees on me. Cassy just smiled down at me shaking her head 'no' as Heather headed to the house.

I knew I didn't need to, but I had a strange urge to be what my sister wanted me to be till mom and dad got home.

I ran as fast as I could on all fours and caught the bottom of Heather's skirt with my teeth. She stopped and turned.

"Frisky aren't ya," She giggled. "I will be back in a minute, but I gotta pee right now."

I bent my head under her skirt and bit onto her panties and started backing away, pulling her forward.

"Hey, what's gotten into you?"

"I think she wants you to pee on her," My sister giggled at the sight.

Heather looked down at me in shock. "Is that what you want girl? Huh, you want me to pee on you?"

I let go of her panties, sat on my hunches, looking up at her and barked.

Heather looked at Cassy shocked. Cassy just smiled as she removed her own panties and walked up next to her friend lifting her skirt.

Heather followed suit and soon I had both girls peeing on me, from both sides of my face.

Cassy leaned in and whispered in my ear. "That's a good, good girl. Go up and shower...We have one more thing planned for tonight, and we want you clean. Oh, and for the rest of the night you can stay on your feet."

She helped me to my feet and I ran up to the shower.

I finished my shower, dried off, and opened the door. I heard my sister call to me from the living room. When I entered, I saw Cassy and Heather standing there naked except for dildos strapped to their waists.

Such a difference between Heather and my sister. Cassy had brown hair past her shoulders, smaller b cup breasts, and a shorter slim build. Heather was about 6" taller then my sister, with red hair, and bigger c cup breasts. Heather was also a lot paler then Cassy.

Heather walked up to me and leaned over to kiss me deeply. She ran her fingers through my slit feeling how wet I had become.

"Good, I think you're ready," She said.

My sister took a seat on the couch. "Come here, Lucy."

I moved away from Heather over to my sister. She grabbed my wrists and put my hands on the side of her thighs and pulled me in to a deep kiss.

Heather at the same moment knelt behind me and stuck her tongue into my butt. I started moaning into my sister's mouth. Heather was doing things to my backside and pussy I never imagined, I wondered if this is how I made my sister feel when I did these things to her...But I knew I couldn't have been half as good as Heather was.

I must have cum three times before I felt my sister grab my hips and lift me onto her cock. I was lost in a daze of pleasurable feelings, and lust as I started riding my sister's cock.

I was riding out another orgasm when I felt something greasy and hard pushing at my butt hole. I was huffing in pain and pleasure as my ass was skewered. God I felt so unbelievable full.

They pounded me hard, in every hole and every room of the house for hours. Licking, fucking, kissing, sweating. It was the most incredible night, ending with us in a pile of tangled body parts on the floor.

We all woke up in the morning with a start when the door opened and closed.

"I can see I missed all the fun didn't I?" Said my sister's other friend, Sarah, standing over all of us with....

'OH GOD NO,' I thought, eyes getting wide once again, 'THEY COULDN"T BE THAT MEAN!'