A/N: Hi guys! So I wrote a Snowbarry piece a little while ago (His Person), and decided to try my hand at another one (this time with a happy Snowbarry ending). I'm including four kisses in this story, one for each season of the show. You can probably guess that the first one takes place in the "Everyman" episode of season one. I know it's been done before, but bear with me. It's important for the next chapter (and I promise the next kiss is one I made up myself). Updates won't take long. Anyway, please enjoy, and let me know if you like it.

He moved to block her from the centrifuge and she stopped. He was really close to her. "What are you doing?" she asked.

There was a strange look on his face – thoughtful and relaxed, almost seductive. "Something I'm thinking I should have done a long time ago," he said slowly, his tone definitely far from normal. His voice was low.

Before Caitlin could ask what was wrong he had moved, and his mouth was against hers.

At first she stiffened, her eyes widening. Barry Allen was kissing her. Why would he be kissing her? It didn't make sense. Did it? His lips were surprisingly soft, and insistent against hers, and her thought process changed as he started to pull away. She'd barely had time to understand it was starting, but she definitely knew she didn't want it to stop yet, and stopped questioning why as she realized that. Barry Allen was kissing her. Her brain shut off as instincts took over.

She let her eyes start to close as her body reacted, relaxing in his grip and leaning closer. Her lips started moving over his in response, her breath hitching. She thought her heart must be beating almost as fast as Barry ran.

And then they heard a noise and sprang apart, and her brain started up again. She stared at him openmouthed, butterflies racing around her insides. She was breathing much more heavily than she should have been as it dawned on her what she'd just done. As she realized she'd given in to the tension she'd convinced herself she'd only imagined existed between them.

And that it had felt amazing.

Of course she found out later that she hadn't actually kissed Barry Allen, but their shapeshifting meta disguised as him. At first she was relieved. She hadn't gone through with it. Their friendship wasn't ruined. She could convince herself it was a spur of the moment thing, and not something she'd been tempted to do since he'd come under her care almost a year ago. Well, she could try to convince herself. Her scientific mind never let her forget a small, perception based detail whenever she thought of that kiss. The fact that, in the moment, she'd thought she was kissing Barry. And wanted it.

A tiny detail that changed everything.

A/N: Here's a little teaser for next time - Big Belly Burger.