Félix watched numbly as Julieta knelt in front of him to take over from her sister, and tried to fight off the sense of wrongness that pervaded him as the wrong triplet wrapped her lips around his thin length.

Wrong, this is all wrong. Her mouth is too big, her hands too small… All the ways in which he had imagined it would feel for Pepa to nestle herself between his legs seemed perverted and deviant when performed by someone else. Still, Félix knew that his Pepa was stubborn as a donkey when she had her mind made up. He tried to reassure himself that this was just a one-time test, and that he could get through this if he just imagined that it really was Pepa deepthroating his cock right now.

With a small grunt of pleasure, he closed his eyes and did just that, praying that this would be over soon enough.

To his dismay, Pepa cruelly decided that the only way to test the depths of his sincerity was to give him a front row seat to the action. She brought over a second chair, coming to a stop directly behind Julieta, so close that Félix could almost out and touch her, but not close enough to find purchase. Bruno took a seat, and Pepa swung a leg over his lap, positioning herself with her cunt hanging just above his swollen twitching cock. As she lowered herself torturously slowly onto her brother's huge cock, Pepa looked over her shoulder and stared at Felix, delighting in the sight of his eyes widening in a mixture of horror, jealousy, humiliation, and lust.

Félix wanted nothing more than to leap up out of this chair, lift Pepa off Bruno's cock, and take her on the floor. But he had promised Pepa not to interfere and not to cum, so he grit his teeth and clenched the sides of the chair so as not to react.

He could not tear his eyes away from the sight of Bruno's dick being swallowed by Pepa's cunt as she bounced up and down on the younger boy's lap. Bruno slipped hand between them to touch Pepa's sensitive clit, and her wails of pleasure mingled with the sounds of falling sand and the slurping noises that Julieta was making below him.

Despite his jealousy at not having been the first to claim Pepa's sweet hole as his own, Félix could feel his traitorous body reacting to the sensual sight of her plump ass jiggling slightly with each thrust of Bruno's hips or her cunt dripping its copious juices all over her inner thighs, a bright sheen smeared all over her brother's balls. His own balls began to tighten, and Félix became all too aware of how Julieta was sucking hard on the tip of his cock while simultaneously rolling his sack in the palm of her hand. Desperate not to fail this test, Félix bit his knuckles to stave off his orgasm, a guttural moan escaping him.

Pepa heard his cries of pleasure and hurried to reach her own completion. "Hold on mi vida, just a little… longer," she panted as she repositioned herself to face her would-be suitor. Bruno grabbed her by the wrists and pulled her arms back, fucking her with wild abandon now, his green eyes glowing slightly as he grew closer to the edge orgasm.

The sounds of balls and hips slapping against skin was obscenely loud, and it only took a minute of this hard, fast fucking for Pepa to break apart on her brother's cock. Bruno followed almost immediately after, sinking his cock in to the hilt as his hips shuddered in the aftermath.

With a cry of relief, Félix grabbed the back of Julieta's head and shoved down hard, holding her in place as he abandoned all sense of decorum in favor of fucking her face with brutal disregard for her ability to breathe. Cum leaked out the corners of Julieta's mouth as he shot his load into the back of her throat.

Withdrawing quickly, he practically shoved her to the side as he rushed over to her sister. Pepa, still impaled on her brother's softening cock, kissed him with a passion she had never shown him before.

"One last test, mi amor, and then we can go to my room, just you and me," she murmured against his lips.

"You have only but to ask, mi vida," he swore.

She stood up, clenching her muscles to hold in as much of Bruno's cum as she could, and then ordered Bruno to get out of the chair. By this point, their attentions were focused solely on each other, and it felt as if they were the only two people in the world. She took a seat and spread her legs, the obscene mixture of incestual juices dribbling slowly out of her cunt and onto the wooden chair.

Félix knew what Pepa wanted him to do, but his face burned with mortification at the thought. He had never even desired a man, much less tasted one, and he found himself disgusted at the very thought of what he was about to do. Still, he knew this was the only way to keep her, so he took a deep breath and knelt before her, submitting himself to her unspoken request as he bent his head forward and took a tentative lick along her slick folds.

It didn't taste as horrible as he thought it would, in fact, he soon found himself addicted to the heady concoction. His tongue sought out every last drop, and he even used two fingers to scoop out a glob of cum from inside her still quivering hole. Once he was sure that he had gotten it all, he began pumping his digits in and out of her as he latched onto her swollen clit. Félix was determined to make her come with his name on her lips, to erase the taste of Bruno from her mouth and cunt.

As Pepa came for the third time that day, she bathed them in a stream of rainbows, and it was the most beautiful thing that Félix had ever seen.