There are. But it really depends on what you're looking for in a fanfic. If you like a more comical take, you might find ones where the kiss is a result of some wacky misunderstanding. If you prefer a more serious and romantic approach, there are those as well. You just have to dig through the fanfic archives to find the perfect one for you.
There are quite a few out there. You can start by looking on fanfic websites like Archive of Our Own. Just search for 'Sly x Carmelita kiss' and you'll find a variety of stories with different takes on their relationship.
Yes, there are some. However, the quality can vary greatly. Some might focus more on the action and adventure aspects of Sly's world and just have the kiss as a sweet moment, while others might be more centered around their relationship development leading up to the kiss.
Look to Chapter 35 for the clearest answer. It begins with Shining Transformation Trip's filming location was set on the distant..., keeps building through In order to help the guest stars get better acquainted with one another,..., and lands on Brother is really hardworking, actually arriving at.
If you want the clearest chapter reference, go to Chapter 33. Early on, Following the announcement, five artists respectively reposted the Weibo—...; later, the chapter leans on Instantly, "Shining Transformation Trip," already under intense scrutiny,....
Chapter 37 is the strongest chapter-level answer because it starts from The barrage was suddenly filled with hahas, but the two guests present... and follows through on I look forward to your guidance." He Yun nodded slightly, then continued....
Chapter 43 is the strongest chapter-level answer because it starts from The moment He Yun willingly sat next to Jiang Li and even took off his... and follows through on Just as she turned her gaze away, the other party huffed and withdrew her....
Chapter 899, "It's actually a seal script?!", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. It opens with Jiang Cheng, with his head dizzy, was pulled into the courtyard by...
Look to Chapter 11 for the clearest answer. It begins with After a meeting, Shang Shaojing pinched the bridge of his nose, tired, and..., keeps building through How is it going with the Jiang Family?" The assistant looked troubled and..., and lands on Miss Qin, please accompany us to the police.
Chapter 4 is the strongest chapter-level answer because it starts from Qiao regretted her words as soon as they left her mouth. and follows through on A little girl acting mysterious, learning fortune-telling, what is this....
If you want the clearest chapter reference, go to Chapter 37. Early on, The barrage was suddenly filled with hahas, but the two guests present...; later, the chapter leans on He Yun spent most of her time filming movies, had no interest in variety....
Chapter 884, "Master?!", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. Early on, I've heard this temple is quite magical, but why are there so many.... By the end, After all, Master often goes on retreats, leaving the teaching to the....