Rachel's first lesson

Next thing Lisa did was to check whether Rachel really did what she was told or not. Silently she sneaked back to her room and carefully pushed the doorknob down. With utmost slowness she opened the door to catch a look at what her sis was doing. Rachel was scurring about the room and actualy she did collect all of Lisa's clothes which she had dropped all over her room. But she did so with her hands and not her teeth. Angered Lisa slammed the door open, rushed at her surprised sister and smacked her hard - really hard - in the face.

The **** of her blow sent Rachel tumbling on the floor.

"You insolent bitch!" Lisa screamed enraged. "I told you to pick up my socks and my panties with your teeth! Didn't I make myself clearn enough, bitch?"

Rachel looked up at Lisa, her face contorted with pure venom. "Fuck off, Lisa!"

"What?"

"I said 'fuck off, Lisa'!" Rachel screamed defiantly. "I won't play your stupid games any longer!"

"Oh, bitch, you just made a grave mistake." Lisa's voice was calm. Deadly calm and thick with menace. Wordless she left the room.

"What are you gunna do, Lisa?" Rachel shouted after her. When Lisa didn't respond Rachel scampered up and followed her kid sister. She found her sitting at the computer. Rachel immediately saw that Lisa had opened a mail client and was inserting some jpg-files via drag and drop to the attachements folder.

"W-what are you d-doing?" Rachel wanted to know. Her voice trembled.

"I told you, bitch. For every time you disobey, I'll send pictures of your sexcapades to somebody you know. But since you just added insolence to your disobedience, I see myself **** to adress this to three people you know."

"W-what? You can't be serious!"

"Oh, I am, sister-bitch. I am!" Lisa turned her head and gave Rachel a gleeful smile. With an exaggerated gesture, she placed her finger on the <return> key.

"Oh, god, Lisa, please, don't do it!" Rachel shouted with open despair in her voice.

"Why shouldn't I?"

"I... I'll do whatever you told me. I-I'm r-really sorry f-for failing you. Pleeeeaaase, I'm so sorry!" Rachel burst into tears.

"I don't believe you, bitch."

"Really, I m-mean it. I'M sooo soorrrryyy, Lisa!"

"Mistress Lisa, from now on."

"Oh, god, yes. Mistress Lisa. Please forgive me." Rachel sobbed.

"Proof you really mean it, bitch. Kiss my feet!"

Rachel was down on her knees faster than a puppy waiting to get taken outside for a stroll. Tears flowing, she pressed her lips on Lisa's feet and kissed them.

"Take my toes in your mouth and suckle on each of them, bitch."

"Yes, yes, of course."

Rachel immediately began to take each lovely toe and suckle on it. Lisa was in heaven. Her oh-so-damned-stuck-up sister was licking and sucking on her toes like a little **** girl. "Thank me for letting you suckle on my toes, bitch!"

"Thank you, Mistress Lisa" Rachel stammered in between each suckle. "Thank you for letting me suckle your toes, Mistress Lisa!"

"Ahh, that's much better, bitch. There's a good little girl. My **** girl. My sis **** girl! Thank me for making you me sister **** girl!"

"Oh, god. L-Lisa, please, have mercy..."

Without a warning Lisa grabbed Rachel's hair and brutally yanked her head up. Rachel screamed from pain. "Thank me, fucking bitch!" Lisa yelled at her.

"Oh, gaaawwwwd. T-thank you, L-lisa for m-making me your sister **** girl!" Rachel's face was twisted from pain.

"MISTRESS LISA!" Lisa hollered fiercely.

"Yes, yes, thank you, Mistress Lisa, for making me your sister **** girl!"

Lisa released Rachel's hair, pushing her depreciatorily away. "Much better, bitch. Now get on with licking!"

Rachel sobbed, but got back to work. Lisa let her suckle all ten of her toes for good measure. When Rachel was done, she ordered her to follow by crawling after her. Tears stricken Rachel obeyed. Lisa headed back to her dorm, took the basket with her clothes and emptied it on the floor.

"Well, since you failed to accomplish what I had told you, you will have to start from scratch. Remember, I want everything cleaned spotless. And you'll pick up my socks and my panties with your mouth. But since I think a little punishment is in line for your previous disobedience, you'll do so on your knees - and with either bare tits or bare ass. Your choice which."