Author's Note: Mature content ahead. Proceed carefully.
*********
Jungkook let his hands roam his boyfriend's glorious physique as he continued kissing his lips and tasting the inside of his mouth.
Jin had the most tantalising body among all of the members, and Jungkook was glad that he was shy about showing it.
Jin often insisted that his outfits did not expose too much skin, and their stylists would always find ways to accommodate his request while still promoting the group's image by dressing him in outfits that outlined his body shape but kept it covered.
Their kind consideration for his boyfriend's wishes reminded Jungkook of a poster he once saw in LA.
The poster was of a model in a bikini and the quote under it read: "A bikini is like a barbed wire fence. It protects the property without obstructing the view."
If the public knew how stunning his boyfriend was underneath his clothes, they would want him too.
"Beautiful," Jungkook murmured. "You're so beautiful to me. So perfect. And I'm so grateful that you're mine."
Jungkook's fingers brushed against Jin's nipples, and it made his boyfriend hiss from the contact.
"Jungkook..."
Jin's reaction to his touch satisfied Jungkook immensely.
Though he wanted to explore Jin's body more, the situation in his lower region was becoming quite unbearable.
His cock needed immediate attention.
And Jungkook was intent on filling Jin up tonight.
He reached for the lube in the drawer of the bedside table.
And covered his fingers with the substance, all while still showering his boyfriend with kisses.
He used his free hand to hold Jin's hips down before pushing one finger slowly into him and pistoning it back and forth in a steady rhythm.
Jin arched his back as he planted his feet firmly on the mattress on either side of Jungkook's hips.
His nails scratched down Jungkook's back as he felt another finger join the first to scissor him open and massage his insides.
It was a delicious torture but Jin knew he wasn't going to last for much longer.
He lowered his hands to grip Jungkook's upper arms, his body trembling with pleasure.
"Jungkook, please... I need you. Inside me. Now."
Jungkook raised himself from his boyfriend's seductive body, and quickly divested himself of his boxers.
He reached for the lube again and coated his dick generously with it.
As he positioned himself at Jin's entrance, he looked into his boyfriend's eyes.
Jin's eyes were so heavenly, so clear, so completely filled with love.
And Jungkook was humbled by the knowledge that despite his poor conduct this night, Jin still loved him.
"I love you, Kim Seokjin," Jungkook declared and pushed himself into his boyfriend in one long, deep, and hard thrust.
A pain-filled cry tore from Jin, and he squeezed his eyes shut.
Jungkook beat himself up mentally at Jin's whimper.
No matter how often they made love, Jungkook always forgot that his girth was above average, and that he needed to be gentle with Jin when he first entered him.
But his boyfriend was too sexy for his own good, too alluring for a hot-blooded man like Jungkook.
So now Jungkook forced himself to be still to let Jin adjust to him.
As he waited, he kissed away the tears that escaped from the corners of Jin's eyes.
He loved him so much.
"Okay, move," Jin whispered. "You can move now."
"Are you sure?"
"Yes," Jin said through gritted teeth, a flash of steel in his voice.
Jungkook withdrew until he was almost all the way out, and then he pushed back in.
He repeated his movements slowly at first, but when he felt Jin begin to clench around his shaft, he picked up his pace, and soon he was pounding hard and fast into his boyfriend.
Jin's soft whimpers were now lewd moans, and the sound spurred Jungkook on and encouraged him to go even harder and deeper into his boyfriend.
He could feel the familiar tightening in his belly, and judging from the tautness of Jin's abs, his boyfriend's climax was close.
He gripped Jin's cock and began to pump it in quick, firm strokes.
"Jungkook, Jungkook..."
He could feel Jin's nails digging into his back, and he revelled in the pain because he deserved it for hurting the one he loved.
"Jinnie... my Jinnie. Stay with me. Please stay with me," he sobbed.
"JUNGKOOK!" Jin screamed, moments before he spilled himself over Jungkook's hand and onto his stomach, his eyes rolling into the back of his head.
The feel of his boyfriend's cum on his fingers sent Jungkook over the edge and he pushed himself deep inside Jin as the tightness in his belly snapped and the most powerful orgasm he had ever felt overcame him.
"Ahhhhh Jinnie... I love you."
He released his seed inside his boyfriend in hot spurts, and Jin welcomed every drop by squeezing hard on his length in neverending spasms.
~~~~~~~~~
From the Author: My first complete smut chapter. It was not easy for me to write because I am not good at it, and I know I lack the ability to get down and dirty like the other authors do so effortlessly. I hope this was adequate.

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The Truth Untold
Fanfic▪︎COMPLETED▪︎ When the wrong assumptions are made, hearts are broken. Can Jungkook repair the damage and woo Jin back? ° Written & Completed on 5 January 2020 ° © 2020 HighlandKat ALL RIGHTS RESERVED. THIS BOOK OR ANY PORTION THEREOF MAY NOT BE REPR...