Read part 1 here http://www.literotica.com/s/yes-mistress-valerie
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"I want you to suck on my nipple."
Clara's eyes widened. "Yes, Mistress."
"Don't act so surprised, bunny. Did you think I was just going to stand here and talk to you?" Valerie stretched her shirt taught and moved so that her nipple was right in front of her friend's mouth. "Close your eyes."
"Yes, Mistress." she closed them, and opened her mouth. The taste of the polo shirt filled her mouth. She wanted to spit it out, but she knew that she had to follow Mistress Valerie's orders. She began to suck. At first, all she felt was air coming through the fabric. Then, she felt her mistress' hand push gently against the back of her head.
"You're doing a good job, Clara .
Clara took her tongue and pushed all of the saliva in her mouth against the fabric. Then, she began to run her tongue across the other girl's nipple. Having such an intimate part of her friend's body in her mouth was turning her on, and she could feel her thighs clenching together, and her hips rocking back and forth.
"Okay, honey, you did a good job." When she felt her mistress' hands leave the back of her head, she stopped licking. Clara emerged from the warm spitty breast that had been shoved inside her mouth with a little bit of drool running down her chin. Valerie took a finger and wiped it off of Clara's lips. She put it in her mouth and drew it out again slowly. "Oh you poor little girl!" She said in mock sympathy. "You look like you're about to burst." Valerie began toying with Clara's nipples again. "And the worst part is that you can't come until I let you come, until I make you come. It must torture you to know that I'm the one in control of everything." She removed her hand. "You've been a very good girl, haven't you, Little Miss Clara."
"Yes." Clara looked into Valerie's eyes, happy to receive praise.
Her mistress' voice turned stern. "Yes what?"
"Yes Mistress."
"And what do we say when we've been naughty?"
"I'm so sorry Mistress Valerie, I've been a naughty little girl. I didn't mean to make you cross. Please don't add a mark to the board."
"Don't beg unless I say so, honey bunny." she added five more tally marks.
"Sorry Mistress Valerie."
"Have you ever seen another girl's vagina before, sweetie?"