I was having such weird dreams, I had dreams of swimming and playing in the river. I had dreams of playing in fields prancing around smelling the flowers, rubbing my face on the grass. Happy dreams.

As my eyes slowly opened and the fog started to clear from my mind, I realized where I was! I was lying in my sister's bed, naked, tied to her crotch...And I was licking her pussy while I slept!

When I realized what I was doing, I stopped, and struggled to get away from her with no hope of doing so.

"Mmmm, that feels good, don't stop now," Cassy said to me.

In the position I was in, I had no choice, and I had already done it the night before, so I grudgingly gave in and resumed licking her 'down there'.

My sister sat up briefly, just enough to flip us over so she was on top of me, grinding herself down on my face. It didn't take her long to get herself off that way, and it wasn't as strong as the night before, but I didn't care as long as she let me out of this ridiculous and humiliating position.

"Not bad, your starting to learn," she sighed as she untied the ropes around us, and sat back on my barely budding chest.

My 15 year old sister leaned back a bit, putting her hands on my upper thighs, her thumbs almost touching my puffy lips. I could feel a tingling in my little pussy, a want to have her touch me.

I raised my hip a bit, trying hard to get her fingers on me, but I couldn't get close enough to her fingers.

Cassy noticed this right away, looking back over her shoulder at my humping little pussy.

"You horny little slut puppy," she started, lifting herself up a bit. "You want my fingers so bad, then here, have them." With that, she lifted her hand and brought it down hard between my legs.

I let out a scream that could have woke the dead. My whole pussy erupted in a stinging fire that went through my whole body.

My hands went flying towards my poor hurt little pussy, but my hands could only get close enough to reach around my sister's butt, as she was sitting on me.

"Are you going to be good, and stop trying to get me to touch you? I'm not a little lezzy like you."

"I..I...I'm s...Sorry," I stammered through my sobs.

My thought were racing. I couldn't help but think that she was the one that was making ME eat her, and she was making me walk around naked while she was dressed. So who was the gay one here? At the same time, I was enjoying part of it, not the hurting me part, but somehow I was getting strange feelings.

"You should be, little lezzy puppy slut," she scolded. "Now, I need to pee little slut, open wide."

My tear filled eyes shot wide open, and I clamped my mouth shut, shaking my head back and forth.

"I do love to piss on you and cover you, so you can either open your mouth and deal with getting some in there, or I am going to sit on your face, in which I will make you drink it all, your choice." She smiled evilly at me.

Thinking it over for a bit, I gingerly opened my mouth a bit, hoping it was wide enough to appease her.

She frowned down at me, but I could tell it was good enough for her. She lifted her butt off me just a bit, and let her bladder go.

The stream started slowly first hitting between my small breasts, then got stronger moving up my neck, across my cheek, onto my forehead, and back down over my face, lips, and in my mouth, before it tapered off back where it started from.

When she finished, I was covered from my breasts to the top of my head, and her sheets were covered beneath me. I was gagging and spitting the pee from my mouth as Cassy laughed above me.

"That wasn't so bad was it Lucy?" she asked me.

I just whimpered and cried. I could taste her pee in my mouth, and would have given anything to wash my mouth out.

Cassy grabbed me and picked me up like I was a feather and flipped me facedown in her piss covered sheets, and pulled the ropes from under her bed tying me down tight to the bed again. I struggled as best I could, but it was useless.

I was screaming and thrashing as she tied one rope around my back, another around my legs, and the last around my head pulling my face tight to the wet sheets.

"This is for disobeying me. So now you can lay there while I take a shower, and if you are good, I might even let you take one too."

I tried to calm myself, but I felt sick to my stomach. I could hear my sister in the shower, and I could tell that she was taking as long as she could to finish.

Finally my sister came back, fully dressed. "Are you going to start being an obedient little puppy, or should I leave you there for a while longer?"

"I...Eh, ARF," I said.

Cassy smiled sweetly at me. "Good, I am going to go make some break...Well, I guess lunch now," she said as she untied me.

"Clean and change my sheets, then take a shower, and come down to eat. Since you are starting to be good, you can use the toilet, and stand until you are done with your shower." Smacking my ass as I got to my feet, she left the room.

I thought about putting on my sister's clothes and making a break for it as I was changing her sheets, but I knew that my sister was in the kitchen, and if she caught me, something worse might happen.

I finished with the sheets, used the toilet, and my shower, and was just about to walk out to see what my sister made for breakfast, then realized that I wasn't allowed to walk when I finished. I stayed in the bathroom for as long as I could until I heard Cassy yelling for me to hurry up.

I got back on my hands and knees, and crawled into the kitchen.

"I'm glad to see that you remembered how puppies' act, but you took way to long in the bathroom. What where you doing, trying to hold out as long as you could?"

'Shit,' I thought. She knew.

"We'll deal with that later, now come and eat."

I was surprised to see that she had made an ham and cheese omelet. She had made a second one for me, that was cut up into bits in the dog dish on the floor with the water dish next to it.

I didn't want to be eating out of a dog dish again, but it smelled good. I must have waited too long because Cassy said, "Maybe you don't like eggs, maybe I should go get another can of dog food for you instead. Is that what you want girl, huh, does my little girl want some doggy food?" she taunted, talking to me like a dog.

I crawled over to the dish an put my face down and started eating. It didn't take me long to finish eating, and I sat up looking at my sister, who was picking up her dishes.

When she picked everything up, she sat down on the couch and turned on the TV. She called me over and told me to stand on my hands and knees in front of her so she could put her feet up.

"NO!" I shouted. "I'm not a footstool," I said angrily.

She grabbed the back of my neck pushing my face hard to the floor, and started smacking my butt hard again.

"YOU...(SMACK) ARE...(SMACK) WHAT...(SMACK) I...(SMACK) TELL...(SMACK) YOU...(SMACK) YOU...(SMACK) ARE...(SMACK)"

I was struggling against her, and sobbing.

"You are a puppy, a mouth for my pleasure, or a piece of furniture, and NONE OF THEM TALK!" (SMACK, SMACK, SMACK)

I collapsed to the floor sobbing. Curling into a fetal position.

"Get up like I told you."

Slowly I got to my knees, hanging my head low. My sister leaned back and put her feet up on my back and sat watching TV.

I don't know how long I was like that, but as my legs started to give way, the phone rang. Cassy jumped up to answer it.

"Hello?...Hi mom...Yeah were doing fine, just watching some TV right now...Yeah, she has been good...Sure hold on a sec. LUCY, PHONE."

I crawled over to my sister's feet. Cassy gave me a very warning look, as I took the phone from her.

"Hi mom...Yeah, everything's fine...I went out with some friends..." and so on and so on, I lied to my mom, not letting her know what my sister was doing to me.

I said I love you, and goodbye to my mother and hung up the phone. Cassy patted my head, and smiled down at me. "Good girl, I think you deserve a reward for being so good."

I looked at my sister hopefully. I followed her back to the living room where she had me lay on the floor with my legs spread wide.

She moved between my legs, her face so close to my private place that I could feel her breath. I was so nervous, and excited by the thought that my sister was going to do to me, what she made me do to her.

I was so stupid to think that she would do that as she crawled up my body till her face was an inch from mine. She pinched my nipple as she said; "play with yourself till you cum."

I grimaced for the pain in my nipple, but just looked at my sister puzzled by her request.

"You don't know how to play with yourself do you? God your hopeless," she insulted me.

I was ashamed of myself for being so naive, but also because I had been so hopeful to think my sister was going to touch me.

Cassy took my hand and placed it over my almost hairless pussy. "You start rubbing yourself till you figure out what feels good."

"Go ahead." She said as she took her seat back on the couch and watched me.

The was so embarrassing touching myself like this in front of my sister. As I was starting to make myself feel good, I noticed the it was getting more and more wet between my legs. I found the hard button at the top, and ran my fingers on both sides of it, then around in circles around it. My whole body was trembling, and shaking. My breath was getting shorter, and faster. I opened my eyes, and I could see my sister smiling at me as I moaned gasped.

Just as I thought I was about to explode, the doorbell rang casing me to shoot out of my pleasure into a panic. I was just about to run from the room to hide myself as my sister told me to stay put, and stay quiet, as she got up and left the room to answer the door.

Cassy came back a few minutes later carrying a box. I was thankful that she was alone, I was sure that someone was coming with her. However, my heart was beating faster, and my little nipples were so hard that they hurt. Even my pussy felt wetter than before.

Cassy set the box on the end table and look me over.

"Well look at you," she started. "You look so excited. Maybe, I should have let the delivery guy in to watch you finish playing with yourself, I bet you would have loved that, wouldn't you you little slut?"

I looked away in shame. Cassy told me to continue where I left off and sat down to open her box.

I brought my fingers back to my nubbin, and closed my eyes, rubbing myself again. I started to think about what it would be like to do this in front of more people than my sister. Strangers maybe?

My whole body was feeling warm again, as I imagined what my sister had in the box. My mind was going all over the place as I thought about all kinds of things. Perverted things that I have never thought about in my life. As soon as I started thinking about how I had licked my own sister, my body felt like it exploded right out from between my legs.

My legs shut tight around my working fingers, and I slumped over onto my side, shaking and crying in both my first ever orgasm, and also my shame of the thoughts of what I had thought about.

"Looks like you had a lot of fun there," Cassy told me looking down at me. "I wonder what you were thinking about."

I just mumbled something incoherent.

"11 years old, and orgasming like that. You really are a slut, Lucy."

Cassy attached a leash to my collar and pulled my still shaking body up again. "Come along puppy, it's time for a walk."

I wasn't feeling much like refusing, so I just followed her, but before we got to the door, she stopped.

"Something's missing," she said, making a mock confused expression. "OH YEAH! That's it," she said at last.

She led me back to the living room, and reached in the box and pulled out something that looked like a stiff ponytail of hair attached to some kind of a black ball that came to a point at the other end.

I gave my sister a puzzled look, not knowing what the hell that thing could possibly be for.

She also took out a smaller tube of some kind of gel, and she straddled my back and poured some of it into my butt crack.

The gel felt really cold, it made me jump a bit. My eye's shot open as I felt a stinging pressure on my butt hole. She was shoving that thing in my butt!

"AAAAAWWWWWOOOOOO!" I screamed as this thing was forced into my poor butt. Whatever it was, it felt HUGE!

After about 10 minutes of pushing that thing into me, and pulling it out a bit, then pushing it back in father, I felt my butt hole close around that big black thing inside me.

"There...That looks perfect!"

I kept trying to look over my shoulder to see what she had done to me now, but I couldn't see, I just could feel the pain in my rear.

"Let's go to my room so you can take a look at yourself now," she told me, taking my leash and leading me to her bedroom.

She had me climb up on her bed so I could see myself in her dresser mirror. What I saw shocked me. I was on my hands and knees on my sister's bed, my little breasts hung barely below me and there was a furry tail that curved upward out from my butt. I had a TAIL!

"Perfect isn't it?" Cassy asked. "What kind of doggy would you be without a tail? Now let's go out and play in the yard for a while."

She took me out back, and over to the tree she had me 'go potty's' at before. This time I lifted my leg without being told to, and let my bladder go as quick as I could. I just wanted to get it over with and get back inside.

Instead, She picked up a stick a through it to the far side of the yard, close to where the path was hiding on the other side of the thick bushes.

"FETCH!" she said.

I turned my head to look at her. I started shaking my head 'no' at her. There was no way I was going to fetch a stick, much less go way over to where I would be in view of the walking path.

Cassy picked up another stick off the ground, and brought it down hard across my butt cheeks. I brought my hand to my mouth and bit on it to stop myself from screaming to loud.

"Unless you want another one of those, I suggest you get your ass moving and bring me back that stick."

I ran across the yard as fast as I could on my hands and knees. I was so afraid that I was going to be seen by someone. I leaned down and picked up the stick with my teeth, and returned to my sister as fast as I could.

"That's not the stick I threw you stupid dog. Go find me the right one," she tormented me.

I was crying as I went back and tried to find the right stick. I could hear an older couple coming up the path, and knew I had to get out of there quickly before I was seen.

I grabbed another stick and hurried to my sister. I dropped the stick at her feet hoping it was the right one.

She gave me a pat on the head and said good girl.

For the next hour she kept up the outside games, making me chase sticks, giving me all the normal dog tricks and commands. When it was over, and we went back inside I was so humiliated that I wanted to climb in hole and disappear.

My sister made dinner for herself, and set out another can of dog food on the table for me. She made sure I saw it, before putting it back in the cupboard. "You were good today, so I think you can have something better to eat."

"ARF, ARF," I responded, then shyly looked away.

Cassy just smiled at me.

After dinner, nothing much happened. We watched TV. She of course was laying on the couch, and I had to curl up on the floor. When it was time for bed, see too me upstairs and stripped out of her clothes and brought me back into the bathroom.

"Lean back over the toilet."

I knew what was coming, and I sat back on my hunches, which pulled on the tail a bit. I had almost forgot that it was there, till that moment. I placed my head back in the bowl and to even my surprise, opened my mouth, and waited.

Cassy straddled my face and pissed in my face and mouth. She was letting it go slowly, as it filled my mouth, dripping down my cheeks into my hair and down my neck.

When she finished, she waited a bit before telling me I could spit it out of my mouth, but not to remove my head from the toilet. She watched as I spit it out all over my face.

"Now dry your face off and come to bed," she said.

I grabbed a towel and wiped my sisters pee from my mouth, but didn't wash my mouth out this time. I crawled back over to the bed and found my sister laying there with her legs wide open.

I didn't wait for her to tell me anything, I just put my face between her legs and licked my sister to three orgasms before she finally pushed me away, and went to sleep.