Somewhat regaining her composure, Selena bit her bottom lip, taking in her younger brother's improved physique with a growing lust. She gulped, feeling a new dampness beneath.
Sending her eyes straight to his face, she somewhat shyly said,
"So, your abilities awakened... because you fucked and came inside me?"
Steven chuckled, holding back laughter. The circumstances regarding his awakening had been much too hilarious.
"Yeah, I guess that's the funny case."
He dazzled Selena with a wink, causing her to blush and instinctively--albeit for a split second--avert her gaze.
It was unusual seeing her like that, but Steven immensely enjoyed the sight.
"See, I was right about you being special. Thanks a bunch, Sis."
"You're... you're welcome, Little Brother. You've wanted this for so long."
She smiled - in the interim showing all her pearly whites.
"I'm happy for you, Steven."
Steven took a step forward, face only inches from Selena's; looking at her with a smirk; as if she were a prey. She frowned, cheeks going red.
Steven, even before his transformation, stood at a height of six feet. So too did Selena.
Steven rested a hand under his sister's chin, and planted a kiss on her lips; sticking his tongue inside and wrapping it around hers.
Pulling away, he heard her softly moan.
"What do you say," Steven began,
"that before we go to the Agency, you get down on your knees and suck your brother's cock?"
Selena squirmed, seeming hesitant before momentarily acquiescing with the words,
"F-Fine, I'll suck your... dick, Little Brother."
At those words, Steven's cock sprung to life - in all its ten-inches glory.
Getting on her knees with a blushing countenance, she said,
"But we have to make it fast. I'm already late as is."
Steven nodded with wide eyes, swallowing saliva due to great anticipation.
Selena--eyes twinkling with lust--first kissed the tip of his cock before licking her lips. She wrapped both hands around his member,
one close to his balls, and one at the forefront.
She then took most of him into her mouth, starting slowly, tenderly sliding both hands back and forth on his cock.
Steven couldn't help it. A moan slipped out.
"Fuck, Sis... that's... amazing."
Selena sent her gaze upward, delighted and wildly aroused by her little brother's words. And it showed in her actions when she got ambitious, removing her hands from his cock to vigorously take all ten inches inside her mouth-pussy. She gagged some, but eagerly moved her head back and forth, causing Steven's groans and moans to echo about.
The man trembled, staring into her-
'Eyes. The way she looks up at me as she-!'
Unable to control himself, Steven clasped the back of her head in both hands, thrusting inside her throat.
"I love how much of a huge fucking slut you are, Sis!"
She gagged, reaching four fingers down to finger her drenched pussy as he pumped in and out of her throat - with all the graces of a madman.
"Take it! Take it, my fucking whore of a sister!"
Selena went cross-eyed. His words and repeated, savage throat-fucking sent her over the edge. Water gushed from her pussy.
Merely two seconds later, Steven's movements vastly accelerated.
"I'm gonna cum, Sis! Swallow everything! Don't waste a single drop, you brother-fucking slut!"
With one final thrust, Steven groaned with barbarism, his balls tightened, and he shot rope after rope of cum down his slutty sister's throat.
Selena came again. Sticking her fingers deep inside her cunt while receiving more of her brother's load, she came again, and again, and again; water spraying all 'bout in quick succession.
Popping his cock out of her mouth, Steven heard her yell,
"Fuuuuck!"
Selena went cross-eyed and her tongue stuck out. She squirted yet again, body erratically moving back and forth whilst she heavily panted. Right after, she fell on her back, almost gasping for air.
Staring down at her with a huge grin--lightly panting himself--Steven said,
"You're the best, Sis."
"Fuck," she muttered, staring at the ceiling.
After two minutes of lying there, after two minutes of Steven watching her,--proud of himself--Selena's eyes snapped wide open and she yelled,
"I'm so late!"
Activating her superspeed, a sonic boom cruised throughout, shaking the room, yet not leaving any furniture or walls worse for wear.
Within an instant, Selena had cleaned and groomed herself and Steven.
Steven saw his sister--now re-attired in her black suit--pleasantly smiling at him. Her gaze traversed him from head to toe.
"You look good, Steven."
"Well, no shi-"
She pointed a compact mirror in his face, watching as his expression shifted whilst pocketing the mirror.
"Holy shit, I'm handsome as fuck," Steven murmured.
Then the realization came.
He raked a hand over his wild, yet now fashionably styled short golden-blonde hair.
His sights came down, and he beheld a blue short-sleeved office shirt, crisp black pants, as well as ebony gentlemanly shoes that appeared particularly expensive.
"Holy shit, Sis-it's easy to forget just how insane your superspeed is!"
His eyes gleamed with excitement, and he got down into a runner's stance.
Selena, more irritated than anything, asked,
"Steven, what are you doing?"
"Let me try something."
"Nope."
Swiftly, she dragged him to his feet. He frowned, rolling his eyes.
"You saw how I broke the sound barrier and didn't cause any collateral damage, right? Do you think you have the inherent talent or the training necessary to pull that off?"
"No, but-"
"No buts, Little Brother. We don't even know how fast you are."
She grinned.
"But we surely will after I test you at the Agency."
Steven impassively nodded.
"Sounds reasonable."
He smiled.
"And it sounds like it could be plenty of fun."
His sister giggled.
"You bet, Steven. Now..."
Veering around and letting Steven eye her skirt-clad seductive backside, Selena enthusiastically yelled,
"To the Supreme Agency!"
Steven cracked up.
"You can be real corny at times, huh, Sis?"
Selena paid him no heed. The sound barrier broke once more. Blinking once, Steven realized that he was soaring through the air--not too high--above New York City.
Selena was embracing him from behind, sights set onward with a beaming mug. A few communities thirty meters down passed them by in a blur.
That was a pleasant moment of silent traveling for the siblings. They both possessed smiles, taking it all in; the entirety of the borough known as Queens.
Out of the blue, Selena touched down, her feet coming down hard on the pavement - yet not cracking it. Steven's feet made contact with the ground right after.
Myriads of talking echoed about, and many people--some wearing costumes--passed them by to saunter onward. The area was bustling. All parking spaces ahead and behind were filled.
The pair were standing outside a monumental building - its glassy and somewhat stereotypical corporate radiance two hundred meters high. Steven wordlessly stared on, awe-struck.
