"This is Allison," I told her as Lillian moaned on my cock. "Allison, this is my girlfriend, Mary."
"Oh, nice to meet you," Allison gasped.
"Allison is going to be our sex slave from now on," I told Mary, who arched an eyebrow at me. "Allison, you'll do anything, no matter how filthy or depraved, that Mary or I tell you to do."
"Oh, absolutely," Allison gushed. "That sounds wonderful! Thank you, Master. Thank you, Mistress. I'll be the best slut-slave ever!"
"Well, she definitely dressed for it," Mary said, reading the words printed on Allison shirt. "And, um, who is eating out her ass."
"Some prudish bitch. She's going to pay for your clothes, right." There was a muffled yes from between Allison's perky cheeks.
I leaned down to grab the prudish bitches purse, trying not to pull out of Lillian. I almost fell over, and my dick sadly slipped out of her warm cunt, but I grabbed the purse and got back inside Lillian. I opened it up and pulled out her wallet. I found a credit card and handed it to Lillian so she could ring up the purchase. I found about a hundred in cash and pocketed that and threw her purse on the floor. Lillian fumbled at the register, having trouble concentrating as I fucked her hard. Allison orgasmed with a small shudder and a moan a minute later. The prudish bitch grabbed her purse and fled the store, almost tripping in her haste to escape.
"Allison, who do you live with?" I asked.
"My father," she answered. "My mom died when I was little."
"Call your dad," I ordered. "I need to speak to him."
She pulled out her cell phone and called him. "Hey, daddy," she spoke into the phone, "my Master needs to speak to you."
I took the phone and heard her dad ask, "Master? What are you talking about, pumpkin?"
"I'm your daughter's Master," I spoke into the phone. "She's going to be my sex slave and live with me. I'm going to fuck her and cum in every hole she has: pussy, ass, mouth. You will not worry about her, contact the police, or go looking for her. She will not be harmed." I handed the phone back. "Tell your daddy what I've done to you."
"Hey daddy," Allison said, my balls were tightening and I was close to cumming a fourth time in Lillian's cunt. "I'm having a lot of fun with my Master. He fucked me in the cunt behind the cash register at Hot Topic. It was amazing, I came so hard, daddy. Then, this woman walked in. She was suspicious of us. But Master wasn't concerned, he just stuck his cock up my ass and shot his cum up my butt while this prudish bitch watched. It was sooo hot, daddy." Listening to this slut moan into the phone as she told her father the filthy things I did to her was so hot. I groaned and shot my load up Lillian's cunt. "Then, daddy, he made the woman eat his cum out my ass and I came a second time."
I pulled my cock out Lillian, wet and dripping. "Slut, hang up the phone and clean your Master's dick," Mary ordered, surprising me.
"Don't worry, daddy, I'll be the best slut-slave ever for Master and Mistress," Allison said sweetly into the phone. "I gotta go now, daddy. Master's cock is covered in pussy juices and Mistress wants me to suck it clean. I love you, daddy." With that, Allison dropped to her knees, and licked all the pussy juices off my cock.
"Grab our bags, slut," Mary ordered as I tucked my cock back into my pants. Allison grabbed the Hot Topic and Old Navy bags. "Walk behind us."
"Yes, Mistress," Allison said, smiling.
Allison trailed behind Mary and me as we walked through the mall. "You seem to be taking to this slave-thing well," I told her.
"Well, my older sister, Shannon, used to like to boss me and Missy around," Mary explained, "and I hated it."
"Revenge by proxy, then?" Mary nodded. "Why not the real thing then," I pointed out. "Say the word, and Shannon could be your very own slave."
Mary blushed. "My own sister," she whispered, mortified.
"Or not, I'm more than happy with Allison."
Mary bit her lip. "You wouldn't ever, you know, mess with my sisters."
"Only with your permission," I said. "I promise."
She smiled gratefully. "Thank you."
Mary led us to Victoria's Secret. "I want to put on a modeling show for you," Mary said as we entered the store. "Slut can help."
"I would love to, Mistress."
Mary arranged everything, after I told the salesgirls to listen to her. The customers were hurried out of the store and then the salesgirls locked the store up. Mary and Allison browsed the shelves with the help of the salesgirls, two beauties named Aurora and Heather. Aurora was the younger of the two, eighteen, her hair dyed dark blue, large breasts on display in a low cut, lacy blouse and blue jeans so tight they were almost a second skin. Peeking out of the back of her blue jeans was a red, whaletail thong. Heather was older, nearly thirty, but no less beautiful than Aurora. She had strawberry-blonde hair, falling in curls about her shoulders, brilliant blue eyes, a dolls face, and pair of round, large tits that strained her gray, silk blouse while a black, tight miniskirt clung to her curvy hips and ass.
Mary had a divan moved to face the changing rooms and sat me in the center and had the salesgirls do a strip tease for me while Allison filmed with my camcorder. Both were novices at doing a strip tease, and there was no music, but it was sexy nonetheless. The two girls wiggled asses in my face as they shrugged off blouses. Heather wasn't wearing a bra and her right nipple was pierced with a gold ring. Aurora was wearing a strapless bra that barely covered her areolas and pushed up her large breasts. Bra off, she rubbed those large, fleshy tits in my face. She smelled of lavender and rose and I sucked a brown nipple into my mouth before she danced away.