It started out as any normal YDAD in Grace's opinion. Mamrie came over and set up the alcohol in front of the white wall and asked for help writing her jokes. They were doing a back to school shot that had ingredients that would help 21 year old and old viewers get drunk and smarter at the same time.

Things veered from the norm when Mamrie asked Grace to dress up like a professor. "Why can't I be the cool professor who goes to bars and gets drunk with their students?"

Mamrie shot Grace a look that told the blonde that no matter how much she argued, there was no getting out of this. "All you have to do is wear a button down shirt and classes for 10 minutes while we make the drink and make the puns. You can wear sweatpants too for all I care. Plus, if you do this, I'll be your best friend."

The blonde couldn't help but smile and let out a playful, annoyed laugh. "Fine, I'll do it because I love you and you're already my best friend."

When she came back out, Mamrie smiled approvingly at Grace. "Wow, you look great. If you would have been a professor when I was in college I would have taken all of your classes and never missed a lecture." Mamrie joked with a wink.

Grace couldn't help but swallow nervously. Mamrie was basically telling her that she was hot, but in what way? Was she saying it how a best friend tells another best friend that she looks great? Or something more?

The younger woman shook her head in an attempt to literally shake the thoughts from her mind. It was definitely the former. Mamrie was the straightest person she knew.

Deciding to joke back to avoid suspicion, Grace replied with, "I'm sure you would have been my favorite student."

Both girls shared a smile before turning their attention back to the video they were supposed to be shooting.

As promised, within 10 minutes the video was done and the blonde and redhead were doing their best to pack up Mamrie's equipment without dropping anything, which was not easy to do after taking multiple shots in such a short amount of time.

When they were done, Grace immediately ripped the shirt over her head, leaving her in just her bra.

Mamrie's eyes took in the beauty that was her best friend's perfect form before recovering. "Looking good, Helbig. Have you been working out?"

Grace rolled her eyes, "Only almost everyday since I joined track in college."

"Well, it's really working for you," Mamrie said with a wink.

Feeling emboldened by the tequila coursing through her, Grace decided to just ask. "Mamrie are you hitting on me?"

The redhead didn't answer in the form of words, but a dominating kiss that took Grace a moment to register before returning it.

After a few moments when oxygen became necessary, the girls broke apart.

"Wow, that was…" Grace trailed off.

"Yeah, I know." Mamrie said with a hint of amusement in her voice and a smirk on her lips. The redhead was about to lean in for another kiss, but Grace pulled away.

"Mamrie, I can't. You're straight and my best friend. I don't want to do anything that could result in my heart being broken."

Mamrie let out a frustrated huff as she ran a hand through her hair and did her best to put her thoughts and feelings into words. "I don't know what I am. Maybe I'm bisexual. I'm not sure. All I know is that I love you."

A large grin broke out over Grace's face at hearing those three words. "I love you too Mamrie." She whispered as she pulled the redhead in for another kiss.