Two of Us

Time Travel. After a rescue attempt goes horribly wrong, Clark lays dying in Chloe's arms. As she frantically tries to save him, a little 'divine' intervention ends up whirling them back in time a full ten years to 2005. Can they get back to were are they desperately needed, or are they stuck now, trapped in the bodies of their younger selves? Clark/Chloe/Lois love triangle

An alternate universe story.

What if Clark Kent wasn't raised by the Kents? The whloe world is turn upside down, a completely different world.

 

Summary:

When Clark rescues a traumatised Chloe as she flees from Davis, they share a passionate and emotional encounter which reveals the depth of their feelings for each other.  But their reunion is short-lived as an abandoned and obsessed Doomsday goes on the rampage, causing death to several including Jimmy.  Wracked with guilt, Clark departs for his training in the Arctic with Jor-El, turning his back on the woman he loves.  But he left behind a whole lot more than he could have ever dreamed possible…

Chloe makes the ultimate sacrifice for Clark.  Clark makes the ultimate sacrifice for the world.

A violent encounter between Chloe and Clark threatens to destroy their friendship forever.

Jor-El wants a grandchild, and he prods Clark to mate:  "I wish to see another generation of Els, and soon. To borrow the human phrase... you need to put a wiggle in it."

Clark must save Chloe from an alien abduction

My version of what was really going on with Clark in the Season 8 "Bride" episode.

An Alternate Universe take on Reckoning. A huge mistake leads to the unimaginable... and the biggest realization of Clark Kent's life.

Clark is undergoing training and can't go home for Christmas, but Jor-El gives him an unexpected gift.

"One journey has ended.  Another is about to begin."  When Chloe follows Clark to the Arctic and is in danger of freezing to death, Clark and Jor-El have very different ideas about what journey Clark needs to undertake.

Clark and Chloe's friendship blossoms into a fast and intense romance, and the two of them couldn't be happier, even in the midst of their changing personal relationships and involvement with the fledgling Justice League, and their dissolving friendships with Lana Lang and Lex Luthor. However, an unintended pregnancy throws their lives into upheaval. Chloe struggles with the consequences of bringing a child into such a dangerous world, and Clark wonders if he can ever keep his family safe, as Lex descends deeper into dark and twisted projects driven by his obsession with the mystery of Clark Kent.

Clark isn't himself any more, and Chloe helps him figure out why.

Clark Kent is married to a tall, beautiful brunette named Lois Lane, but he dreams about a short, snarky blonde each and every night.

 

A Chlarky ending to Smallville.  Takes place right at end of Season 9 (Salvation) Story begins at Watchtower minutes before Clark falls from the tower.  Clark Kent is dead.  Chloe will stop at nothing to change that...and that changes everything. 

 Clark forces himself to say goodbye to the one person he loves the most.

There's more than freezing to separate Clark from humanity...

After Chloe Sullivan's forced imprisonment in his home two years ago, Clark Kent came to realize that love and friendship are two sides of the same coin. Two years have passed and he and Chloe are committed to each other and he is content in his relationship and his livelihood, working his family farm the way generations of Kents have with heart and pride, while maybe only slightly worried about the constant little voice in the back of his mind whispering about destiny and such. But just as he begins to face the fact that he can't put off the future forever, a chance unfortunate encounter with a jealous girl strips him of his powers for three months. With Murphy's Law in full effect, he then breaks his lower leg.  Suddenly placed in the role of convalescent, and shaken out of his comfort zone, Clark has to learn to adjust to the transition of not just his injury, but his future with Chloe, his farm, and most of all, his bigger destiny and the obligation he feels to both his birth and adopted father, all against the backdrop of the season of change, a springtime he will never forget.

Clark lives Chloe's memories in order to save her

There comes a time when even gods must die... Superman in love; Superman in battle; and for the first time, Superman... defeated.

--Superman: Doomsday

Jor-El tells Clark a Kryptonian legend that has relevance to Clark's life.