(A) She accepts the choice and enters the challenges.

The robotic arms holding her spread eagle released Randi with an almost **** whir. She rubbed her wrists and tried to think what to do. Looking in her cousin’s eye she knew there was no reasoning whit her. But what kind of choice was it - risk her beautiful melons or doom her best friend’s tasty tits. She looked to Daisy. The blonde’s blue eyes shimmered with fear.

Though that fear made her heart pound against her ribs, Randi couldn’t turn her back on Daisy. With a deep breath, she said, “Alright Sandi, you win. I’ll do your challenges, just let Daisy go.”

Sandi laughed. “Dear sweet cousin. If I let her go, then I’d have no way to insure you’d go through with the challenges.” She caressed Daisy’s slightly bulging left breast. “But don’t worry, I’m a woman of my word. Once you pass or... fail the challenges, I’ll let her go safe and sound.”

Randi glared at her cousin. An unfamiliar sensation swept through her. Anger. It boiled in her gut, churning with her fear. If not for the threat to Daisy, she would have attacked Sandi in a heartbeat. Since she couldn’t, she channeled the fury into crushing whatever challenges Sandi throws at her. Voice a snarl, she said, “Then let’s get on with this.”

“That’s the spirit.” Sandi snapped her fingers and an odd frame lowered from the ceiling.

It descended until it was level with Randi’s chest. In the center of it, aimed right at her cherry sized nipples were too rings. They looked to be five inches in diameter and very similar to the pair adorning Daisy’s mams.

Though she knew what they were for, Randi had to ask. “You want me to stick my tits into those?” Before her cousin could reply, she scoffed. “You’ve got to be kidding. My breasts are over three times the size of those holes, how would I be able to fit?”

“Oh sweet tits, you would be surprised what we could squeeze your melons into.” Sandi looked at her wrists as if to check a watch. “However you do it, you better hurry. The nano rings are on a timer and if those two are not set with your massive teats then the programming will default as if you choose to let poor Daisy take your place after all.”

“What?” Randi and Daisy asked in unison.

“You heard me, fail to enter a challenge and Daisy suffers. Now let’s get a move on.” Sandi rolled her hand at her busty cousin.

Randi couldn’t believe what was happening. But she couldn’t let her best friend down. Squaring her shoulders, she took a deep breath. This caused her nipples to brush the cold rings. Oh God, I’m about to crush my tits into that! Grabbing her right breast, she squeezed it down between both hands. The fat mound bulged between her fingers as she continued to press it harder to the ring. Slowly, tit flesh inched through the too tight opening.

“Oh God! This is so crazy!” But despite her fear and doubts, she kept working. Another thirty seconds and her breast was starting to look like a mushroom cap. Teeth clenched, she grabbed her nipple with one hand and began to pull while pushing.

Once her boob was about halfway, she looked to Sandi to see if that was good enough. Not a surprise, it wasn’t. Randi kept kneading and tugging. Her tit looked like a loaf of bread with a string tied around it. Once the loop popped against her chest wall, Randi wanted to cry out. Whether from the pain or from finally getting her melon through. With how tight the ring was veins began to rise against the taut surface of her breast. She could easily trace each tributary with her finger.

“Good job. Now the other one. You don’t have much time left to start the first challenge.”

“What! This isn’t the first challenge?” Randi waved at her trapped teat.

“Hardly. That is merely the prep work.”

Teeth gritted, Randi went to work on her other breast. Having already done it once it was a little easier the second time around. Also, not knowing how much longer she had, she worked harder. Finally, the ring popped into place. A little chime sounded and the frame released the rings. Randi couldn’t believe how red and swollen her tits were in such a short time. Considering the loss of circulation, she cupped her mammaries. “What about blood flow?’

“Don’t worry. The nano-wires are making sure that more than enough blood is making it through your teats.” Sandi gave a follow gesture. “C’mon, it’s time for your first challenge.”

The small red head lead Randi over to the open door on the left side of the room. Beyond was a wide hall. Lining both walls in a stuttered pattern, strange devices protruded out at chest height. Sandi pointed down the hall. “All right, my big titted cousin, the first challenge is simple. Walk across this hall in under 3 minutes and you pass.”

Randi sneered at her. “I’m not stupid. What’s the real challenge?”

“No, really, just walk across the hall.” Sandi batted her eyes innocently. “Of course the path is through a gauntlet. But that shouldn’t be a problem.”

She patted Randi’s balled up left breast. “Or you could forfeit but now with the nano-wire on...” she left the sentence hanging.