Disclaimer: I do not own the Flash

Here's our next chapter. Enjoy and thank you for reading.

The next morning, Caitlin could feel the terrible headache she is getting. At least she knows what the serum could do a normal person, but the pounding in her head is only getting worse. She didn't want to move at all. But she knows she has to go to S.T.A.R. Labs and start her day. Who knows what is in store for today as she has no memory of what happened last night. The last thing she remembers is Barry coming to the door as Snart and Mick held her captive. Well, she knows she could never make that serum ever again or maybe for a while. It is for Barry and it wasn't her fault the events from last night lead her to this.

She keeps rubbing her forehead until she hears a light snore come from her right. She turns to see some man is passed out on her bed. Oh God! What did I do? Caitlin screams internally. She slowly moves to see who is on her bed, but it was a little hard. Her whole body felt sore, which only means one thing… they had sex. She gulps and sees it is Barry in her bed. A part of her relaxes as it is not a stranger she had sex with, but a majority part of her is embarrassed. She couldn't contain herself anymore and let out a powerful scream.

Barry's eyes shoot open and he sits up fast. The pounding in his head is a mystery to him as he does not remember much from last night. That's a first. He thinks as he notices something is off. He isn't in his room and he heard a girlish scream. He turns to his left to see Caitlin, who is covering herself with her sheets. Oh shit, what happened? He thinks, but it didn't take long to put the pieces together. He feels sore as well, which means they had sex. His eyes widen as Caitlin is trying to think straight, but nothing is working for her. This scene is too much for her as she does not remember anything from last night! But maybe Barry had a better luck than her.

"So… do you remember what happened last night?" Caitlin asks without looking at him. It is clear to anyone who would see this that they had sex. What surprises Caitlin is the state her bedroom was in. Their clothes are thrown everywhere. Her shelves were empty and thrown on the floor. If anything, they had rough sex last night. She can feel her cheeks warm up at the thought of last night, where she has no memory of.

"The last thing I remember is Snart saying 'have fun 'lovebirds' and then he left. After that, last night was a blur." Barry says as he as well notices the state of Caitlin's bedroom. He can't help but feel embarrassed for causing this. Who knew they had that in them? He looks at her clock to see its 8:45 a.m. It's a good thing he didn't have work today. But he knew Caitlin did… even if he is the boss. It's weird when he thinks about it and right now it's not the place to do it as he did just have sex with her.

Caitlin tries to get off the bed but her legs feel like jelly. She can hear Barry snicker behind her and turns around with a glare. He only smiles at her, knowing he is the cause of her soreness. Even though this situation is awkward, Barry didn't want it to be like that. He knows they would have to talk about this eventually, but for now he would have a little fun with it.

"I must have been really good for you to barely be able to move." He jokes. Caitlin's eyes widen and throws a pillow to a laughing Barry. She rolls her eyes, but gives a smile. While she does have feeling for the speedster, she still isn't going to give him the satisfaction of gloating.

"If it makes you feel any better, I am sore as well." He confesses to her. Caitlin laughs as she couldn't hold it in anymore. But it slowly fades as she thinks about the serum. Barry notices this and grabs her hand.

"Hey what's wrong?" he asks.

"It's just… I can't make that serum again Barry. Now that we know what power it holds over you, it's dangerous. Who knows what Snart and Mick did while we were wasted? I'm sorry." She says as she looks at her hands. Barry shakes his head at this amazing woman in front of him. Even after last night's events, she still cares for others. He lifts her chin to make her look at him.

"Caitlin, you're a genius. And don't worry about them, we will catch them. Think of it as we gave them a head start since I am fast." Barry says as he pushes a strand of her hair behind her ear. Caitlin smiles at how positive he is. "Also, I didn't tell you how beautiful you looked last night." He tells her as she can feel her cheeks warm up again. But as much as she would love to be here in bed with him, she did have a job to go to.

But for some reason she couldn't move away from Barry. It's like she is stuck in this position until they talk about last night, but Barry had a different idea. He crashes his lips on her hers as he couldn't hold back anymore. Caitlin kisses back without thinking and they both continue their adventures from last night.

After those adventures, they finally got off the bed and they both headed towards S.T.A.R. Labs. Of course Cisco is there with Harry, working on their regular metahuman devices. They both notice how Caitlin and Barry enter laughing. Cisco crosses his arms and clears his throat. Both scientists look up at Cisco who looks a little mad.

"You two left me at the bar alone. What gives?" He asks. Caitlin didn't want anyone to know of what happened last night. It is best that way. She turned to Barry, who apparently already has a story made up in his mind.

"Well, remember I told you I was going to check on Caitlin because she was taking a long time to get here."

"Yeah, I do. I also remember you told me you were going to text me, and guess what? I never got that text." He states.

"Well, it's because Caitlin was held hostage in her own apartment. So I had to be the Flash and make sure she was safe."

"Caitlin, are you okay?" He says concerned, and now feels bad for being mad at them.

"I'm fine, thanks to Barry." She responds with a smile. She knows Cisco feels bad, but it is a normal reaction from him. He always worries for her as she worries for him as well.

"Well, after I beat them, I made sure Caitlin was okay. So instead we stayed in and watched some Netflix. She fell asleep and I left her tucked in bed as I slept on the couch." Barry finishes. Cisco believes the whole story, but Harry had a suspicion they were not telling the whole truth. He doesn't say anything but tells Caitlin that he is glad she is okay. Caitlin actually notices that Harry didn't believe their story in their entirety. She didn't want to do anything about it unless he spoke, but knowing Harry, he wouldn't say anything. So, Caitlin lets it go and focuses on her two friends.

As the day goes by, there is not much going on. It is a peaceful day, but Caitlin's and Barry's mind hasn't been at peace since this morning. They both knew this conversation is supposed to happen but they were scared. This would mean their friendship would never be the same. Neither one of them wanted to change their relationship.

At the end of the day, Caitlin grabs her things and gets ready to leave. Barry notices this and goes to her.

"Hey… can we talk at your apartment?" He asks. Caitlin, at first, is iffy about it, but she can't avoid it, so she smiles and nods at him.

"So are we walking, driving or flashing over there?" He asks jokingly. He knows Caitlin loves her walks, but he has his mind made up and he wants to tell her as fast as he can.

"Well, considering my car can't just stay in the parking lot, I say we go by car." She states. Barry smiles as he grabs her keys. The car ride is nice and peaceful one. They really didn't have anything to hide. Their bodies did the talking last night as well as this morning. Tonight, well, Barry just wanted to make it official. He knows Caitlin deserves the world and he needs to move on. If he remembers correctly, that serum was made for him to get drunk and forget about Iris' and Eddie's engagement. But he didn't need the serum. He takes a quick look to Caitlin who is looking out the window, and smiles. This girl is everything and it took a one night stand to open his eyes.

They arrive to the apartment, and go inside. Caitlin settles her things and takes off her high heels. As much as she loves her outfits, those shoes are just a pain to deal with. She sits on the couch across from Barry, who looks a little nervous.

"So… what do you want to talk about?" Caitlin asks. She already knows, but it's just to get him started.

"Caitlin… what do you think last night meant?" He asks her instead of telling her of his feelings.

"Well, Barry I really can't lie to you. You already know I am a horrible liar. But Barry… I have feelings for you. I have for a while, but I don't know if you feel the same, which is why I never told you." She confesses. She looks at Barry who has the biggest smile anyone could ever have. Her heart beats faster as he gives her a passionate kiss and then hugs her.

"You just made me the happiest man alive, because I have feelings for you as well Caitlin Snow. You have no idea how happy you have made me." He squeezes her as she laughs at his reaction. She can't help but feel as she is the happiest woman in the world as well.

"I'm just glad you feel the same. I really like you Barry. I have for a long time." She says as she gets lost in his eyes.

"And I really like you, Caitlin. I am sorry it took me this long to figure it out." He jokes, but leans in and gives her another kiss. This is only the beginning for them, but neither of them is prepared for what is coming their way. But for now, they are happy and getting busy as well.