Sorry for the long wait, folks. Life got busy for a bit. Hope this is worth the wait...
*****
Saturday morning began slowly. Joly slept late. Rina ached with exhaustion and put off getting up as long as possible. What had she been thinking when she accepted that stupid bet? Sure, there was something emerging, being broken out of its shell in her. She was discovering her submissiveness, but she had been some other person for so long that this new Rina felt strange and shameful. Letting someone - even as good a friend as Rina- force her to expose herself? Have sex with strangers? Have sex with women? This wasn't her, this was some dirty disgusting evil being.
And yet, she had never been more aroused or satisfied in her life. As she lay there with the sun streaming in and illuminating her spent and naked body, a war raged within her. Should she tell Joly to just screw off? Pack a bag and leave? Move to another city? And just as that thought seemed at its most attractive, her sexual need came knocking at the door, "You want this, girl. You are loving being a humiliated cum slut." And her juices began to well up.
Yesterday, as promised, when they got home from the shopping expedition, or perhaps exhibition, Rina was ordered to don the strap on and pound her mistress until Joly had several satisfying cums. They spent the rest of the evening sipping wine and trying on or out the various toys they had bought, but nothing too strenuous. Of course, the trying on had taken place in front of Rina's wide open and brightly lit windows where anyone in the high rises across the way could see the action.
After bathing her mistress and herself, Rina dropped into an exhausted sleep, dreamless this time, until she woke and her internal war began.
When she finally crawled out of bed she wandered around the apartment - even ventured out onto the balcony alone and without being ordered to do so. She was impatient waiting for Joly to wake wondering what new adventures and humiliations awaited. And yet she understood that as a sub, patience and waiting were part of the delicious anticipation of the game.
Mostly, Saturday was spent quietly. Sure, Joly made her go out for breakfast again, clad only in the cum covered dress shirt from the day before, and again she was made to sit on the balcony, naked for the world to watch while she ate and drank her coffee.
"How's about you go get that Hitachi wand, slut?" ordered Joly. We didn't really try it out last night and I guess it's been a long while since you had that unauthorized orgasm in the sex shop. I'm betting you would like another, eh?...Oh, and bring your phone, too."
The new slave returned, both horny and reviled at the thought of bringing herself off on the balcony. She was already blushing on her return. Though she had been out there on her own an hour before, exhibiting yourself and being exhibited under orders was completely different. The latter was far more intense.
Meanwhile, Joly had pulled out some poster board on which she had written "Slut needs permission to cum. Please call..." and Rina's phone number. Rina blushed deeply.
"Ok, sweetie, plug in the wand, sit down and put your feet up on the railing spread wide. Let everyone across the way see your dripping cunt.
"Now, here are the rules...you don't take the wand away and you DON'T cum until some nice person calls up and gives you permission."
Joly held up the poster angling it from side to side for all the voyeurs to see. Rina started rubbing her clit with the powerful wand and immediately wanted to cum. This was going to be hard!
The phone didn't ring at first, not for 10 long minutes. Rina started sweating and grunting with effort.
Finally the chime sounded. Joly answered on speaker.
"Hellooo this is the slut line! How can we help you?"
An angry woman's voice shouted down the line, "This is an utterly disgusting display. You are both whores and you will be damned to Hell for your lascivious, disgusting, sinful actions. And before you taste Hellfire, you should be jailed..."
Joly let her go on for sometime before interjecting, "Thank you for calling slutline and sharing your views. However you aren't helping this little whore get off so, goodbye!" She snapped "goodbye" just like that English woman on the game show.
Rina grunted with relief. Her task was getting harder. She almost had no sense of the world around her anymore, so lost was she in the subspace of her humiliation. Her only focus was her arousal and her desperate effort not to come.
The phone chimed again.
"Oh this is amazing! I got through. God you are a hot little minx. I saw you yesterday too. You are great and soooo submissive."
Joly interjected, "Thank you so much for calling. You know we are playing a little game with slut. As you can see she is playing with herself, and I have to admit that for a worthless cunt, she is doing a pretty good job of holding off her orgasm. You see, she has to get permission from some kind caller before she can come, Otherwise I will have to punish her."
The work 'punish' broke through Rina's haze and nearly pushed her over the edge.
"Rina...RINA, snap out of it and pay attention! Your kind caller has a question for you..."
"Hey slut, you are pretty damn hot."
"Thank you sir," she gasped.
"What will you do for me if I let you come?"
"Ohhhh, God! Anything sir! I'll suck you, you can fuck my pussy, my ass...ANYTHINNNNNGGG. Please, sir!"
"Well, that sounds pretty good. Ok, you can come, NOW!"
Joly was sure the scream springing from Rina's lips woke up anyone still asleep anywhere in the block. She started giggling uncontrollably. The girl bucked and shook for a very long time, face flushing, and sweat streaming. Joly recorded it all, of course.
"Stay here and get yourself off again for the nice man. I'm going inside to talk with him privately."
Rina obeyed after she calmed down and so climbed to a second shattering orgasm.
Inside, Rina asked the man's name. 
"Rick. Damn that's one hot girl...well..um...you both are really."
"Why thank you. Can you send me a pic of yourself?"
"Sure! Hang on."
Shortly Joly was looking at a nice and well built guy. She had an idea.
"Well, I know Rina slut has to pay off a debt to you, but I have to tell you that I got kind of horny watching that shameless little vixen. You up for a twofer?"
