Season 4, "Onyx"
Rating: Adult. If you're under eighteen, please go elsewhere now. Disclaimer: These characters belong to the CW and DC Comics, not to me.
Based on a prompt by tariel22.
Read the previous chapter here.
Read the story from the beginning here.
Lex's hands slid down to unbutton Clark's jeans, and Clark reared back, just a bit. His eyes were wide, almost panicky, and Lex could understand that. Clark was young, after all. And besides, well, taking off their pants and getting naked together was a little different from making out.
"It's all right," he whispered again.
"It's not that." Clark's long eyelashes swept down to conceal the brilliant emerald of his gaze. "I mean, not exactly. It's just-- I don't know what I'm doing, Lex. What if I'm not any good?"
Lex couldn't hold back the smile that curved his mouth. "I'm honestly not worried about that, Clark."
"I just don't want you to think... I mean, I'm sure you've been with other guys, lots of them, and..."
Lex reached up and caught him by the hair, none too gently, and stared straight into his eyes.
"And none of them have been you," he said, very softly but very fiercely. "You're the one I've always wanted, Clark. Always."
Clark's eyelashes fluttered. "I know what you mean," he said, just as softly.
"So quit worrying about it, Clark. It can't be less than perfect. Trust me."
He stripped off Clark's jeans, tossing them to the floor, and Clark shoved off his slacks, and then they were entirely naked together except for their boxers. Lex wore black silk boxers, and Clark wore blue cotton ones.
Lex pushed at Clark's shoulders, and the younger man rolled over without argument. Lex leaned over him, letting himself feast on the sight of Clark naked and breathless and ready to make love.
He'd dreamed about this moment for a very long time.
He lowered his head to Clark's chest, and Clark jerked and moaned at the touch of Lex's lips against his nipple. Lex explored his chest, then let his mouth move lower, finding Clark's navel and kissing it, then following the dark trail of hair that led downward...
The word was a strangled protest. Lex smiled against Clark's abdomen.
"Relax, Clark. It's okay."
Clark fell silent, but he was not relaxed. Lex could feel the tension in the muscles beneath his lips. He tugged down the boxers, and Clark's erection sprang free. Lex raised his head a little to look. It was huge, so big Lex wasn't sure he could close his fingers around it, an ivory tower etched with blue veins. It pulsed as he stared at it, and he saw that the head was already wet with precome.
"God, Clark," he muttered harshly. "You're beautiful."
Clark moaned, as if the words were enough to bring him pleasure. Lex doubted he'd been told often how beautiful he was. His parents had brought him up to be modest, and he'd somehow adopted the guise of an ordinary kid in high school, not one of the cool or popular kids despite his stunning good looks. Lex wondered if Clark knew how beautiful he really was.
He decided he'd tell him, over and over again, until Clark believed it.
He lowered his head and began to press kisses to Clark's lower belly, his lips trailing all around Clark's heavy erection without actually touching it. Clark arched his back eagerly, squirming beneath him.
Lex didn't respond to the clear plea in his voice. He continued teasing Clark, kissing him everywhere except where Clark needed it most, until Clark was trembling beneath him, his cock quivering, welling with precome.
And then, finally, he brushed a kiss across the tip of Clark's erection.
Read Chapter 5 here.