The Book Of IDOLiSH7, TRIGGER, Re:Vale, and ZOOL Oneshots

TennRiku (Smut)

(A/N): I promise, no surprises this time~ But I'm going to go right into the smut~ And the traditional WARNING: SMUT! READ AT YOUR OWN RISK! And is slick just an Omegaverse thing? Someone correct me if it is...

Happy birthday to Riku and Tenn!~☆!

Tenn prodded at Riku's hole with his tongue, lapping at the slick inside.

It was insane, lewd, wrong, but Tenn loved it, absolutely lived for it. No one could make him not love Riku, flick off the switch of desire that certainly did not come from familial love. The taste and feel of his twin's slick on his tongue, the moans and pants from Riku's mouth, kissing him passionately, fingering him, having sex with him. . .

Tenn wouldn't give it up for the world.

"Tenn-nii..."

Tenn's eyes flicked upwards and- oh dear god, his twin was such a turn-on.

Riku's head was craned over his shoulder, looking at Tenn with tear-filled eyes. His face was absolutely red, pants and moans spilling out of his mouth. It was painfully cute.

His mouth seemed to be coherently working now, though. "Tenn-nii! Stop teasing me!"

Tenn laughed. "I can't help it, Riku. Every part of you is so cute~" He succeeded in prodding his tongue into Riku's hole, his tongue being surrounded and encased in the hot warmth of Riku's hole and the feel of Riku's slick all around him. "Especially this part~"

If possible, Riku turned redder. "T-Tenn-nii!" He stuttered, tearing his face away from his twin kneeling behind him. "That's so- so-"

"Lewd, Riku? Is that the word you were looking for, hmm?" Or, that's what Tenn wanted to say, but it came out as a hum since his tongue was occupied.

Riku must have felt it, though, as he shuddered and moaned, trying to press back onto Tenn's tongue. He didn't get very far, since Tenn's hands were holding his hips still.

As it was, Tenn didn't mind getting a closer view of Riku's ass.

Tenn licked at Riku's walls, feeling his twin tighten and clench futilely around his tongue. Tenn's tongue flicked that bundle of nerves inside Riku, but he couldn't quite touch it. Riku shuddered again, moaning.

"Tenn-nii," He said through pants, "Stop teasing me and go faster."

Tenn pulled his tongue out, chuckling softly. He stood up, making sure Riku saw him seductively lick his lips for leftover slick. "Your wish is my command, princess." He dragged two fingers over Riku's face, dipping them into his mouth.

Riku got the hint and obediently started to suck Tenn's fingers, swirling his tongue around them expertly and coating them in saliva. It made Tenn hotly happy as he recalled their first time together, and how much Riku had grown.

Their first time together, Tenn had been startled at the feel of Riku's naturally slicked hole as he fingered him. It was an entirely new feeling for him because, even though he'd had the occasional flings (those stopped immediately as soon as he and Riku become lovers), no one he'd ever known had Riku's slick.

Their first time, Riku had been inexperienced, so innocent Tenn wanted to run him to the ground to ruin him, to put a stain that would forever mark his twin as his. Now, though, Riku had Tenn wrapped around his little finger. Cute though he was, he knew exactly how to reel Tenn in with every moan and twitch.

Tenn deemed his fingers wet enough and dragged then out of his twin's mouth, breath hitching at the sight of his own fingers, coated in Riku's saliva, coming out of his twin's mouth and through his kiss-bruised lips.

"Good job, love," Tenn praised, rewarding Riku with a small peck on the lips. He lowered himself into Riku's lap, straddling his twin's hips with his knees. Carefully he let his hand creep lower, circling Riku's hole but not actually going inside. Riku whimpered as Tenn leaned forward, foreheads touching.

"T-Tenn-nii," Riku moaned, pouting, "You're so mean. Stop teasing me."

"I could never." Tenn chuckled softly, grinding his ass down on Riku.

Riku looked at him with a pout and puppy eyes. Tenn couldn't turn down Riku's puppy eyes, much less his bedroom eyes.

Tenn stole Riku's lips in a kiss as he plunged a finger inside his twin. Riku moaned, bucking backwards onto his finger without Tenn's hands to stop him. Tenn quickly added another finger as he playfully darted his tongue over Riku's bottom lip. Riku moaned against his mouth and bucked backwards again. They broke apart, a string of saliva connecting them both.

"So mean, Tenn-nii," Riku whispered into Tenn's ear, "You haven't even moved yet."

Tenn smirked. "Isn't that all the fun?" He asked, shoving another finger into Riku's ass. His twin moaned, bucking backwards again.

He didn't get very though, as Tenn now had his free hand on one side of Riku's hips. "Ah, ah," He tutted, "That's so naughty of you, Riku, trying to fuck yourself on my fingers."

"Tenn-...   nii..." Riku panted, looking at his twin with tearful eyes. "Won't you please fuck me now?"

"Of course, darling," Tenn purred, "Anything for you." He watched as Riku threw back his head and moaned loudly as Tenn violently thrusted his fingers fingers inside him. He licked his lips, watching every time Riku tried to buck backwards on his fingers as he thrusted his fingers deeper.

Tenn added a fourth finger inside Riku. His twin's moans and pants were practically spilling from his mouth, calls of Tenn's name thrown in.

Like Tenn said before, such a turn-on.

"Tenn-nii!" Riku moaned loudly, tears streaking down his face, "Fist me!"

Tenn grinned. He cooed. "So naughty, Riku. You just love the burn, don't you?"

Riku nodded furiously. He was almost crying now. "I just want Tenn-nii's hand inside of me!"

Tenn chuckled softly. "Don't complain when you can't stand tomorrow," He said before kissing Riku roughly. Riku kissed back with the same roughness, moaning as Tenn worked his hand into his twin's hole.

Finally his hand slid in, aided along by Riku's slick. Tenn almost moaned at the sensation of his hand being surrounded by hotness and slick. He moved his fingers one at a time.

"Tenn-nii," Riku moaned, "Go deeper and faster and harder!"

And how was he supposed to say no?