When he told Rachel he doesn't take steroids because they "make your junk fall off."

When he got back on the football team and got his uniform on and then closed the locker with his shoulders and was super happy and excited. < this is the best tho

When he was spraying some icy/hot thing on his shins and rubbing it in and then rubbed his eye with the same hand and started screaming and running around in the locker room in his towel.

In no specific order:

Finn being offended on Rachel's behalf about Britt getting all the solos in the Britney episode.

Rachel telling Finn "say something" when Shue wanted to give the solo to someone else and then him saying something.

Finn beating the hell out of Brody and telling him "stay away from my future wife!"

Finn telling Rach at Nationals that she got this and encouraging her to go on and perform even though Carmen wasn't there.

Finn just going in to poop while Rachel is in the bathroom and saying "I'll just jump in beside you. I don't mind if you stay."

The last two are my absolute favorites tbh.

BEFORE THE BEGINNING — three sentences (or more) about something that happened before the plot of my current project

It's more than three sentences oops!

--

Rachel's dads and Carole went on a cruise and both Rachel and Finn forgot about that when they scheduled Rachel's Swan Lake audition and Finn's job interview on the same day at the same time. Their other friends all had plans, because why wouldn't they? It was Friday. People usually had fun on Fridays, not important career events.

Both of them were debating whether one of them could work out bringing Riley in with them, but then Finn remembered there was one other person they could ask. Rachel immediately turned down his idea, but she eventually gave in after Finn made some very good points that it was their only option.

She packed a full bag of stuff for Riley. They were only going to be gone for about two hours, but she didn't want the girl to be missing anything while they were gone. Rachel also grabbed a huge stack of papers that looked almost like a book.

"What is that?" Finn looked at it confused.

"It's my babysitting book. I put it together in case there would come a day when one of our friends had to babysit Riley. This has instructions and graphics for everything they might need."

Finn was impressed by the answer and Rachel smiled sweetly as she plopped the huge book on the table. She also wrote it for herself, for when she first started babysitting Riley. She wanted to make sure she did everything right and she took notes on everything Finn, Carole, and her dads, and some books from the library, told her about looking after a baby.

Finn called Santana to ask her if she could babysit tonight. After a long rant about how it was rude of him to assume she had no Friday night plans, Santana admitted she had nothing planned and that looking after a baby was very low on her list of things she wanted to do.

"I told you she wouldn't do it." Rachel, who was standing close to Finn so she could hear the conversation, piped up. "She probably doesn't even know how to look after a baby."

"Tell your girlfriend I can definitely look after a baby. I'm the best at it. You know what? Fine, I'll babysit the Tubby Flaming Hot Cheeto. Just drop her off. I'll even do it for free." Santana ranted.

All of them. Like if a song had drums or didn't have drums in it, I need Finn or Cory to cover it. I just wanna hear all the music in his voice and his style. It would improve all songs so much.

But if I had to choose a normal amount...

Chain by Fleetwood Mac. I need this to be a duet with Rachel in the Rumours episode.

You're the Inspiration by Chicago. Peter Cetera wrote this song specifically for Finchel and it's a shame Finchel or Finn never sung it, especially since the entire song is listing all of Finn's feelings for Rachel.

I Don't Want To Live Without Your Love by Chicago. I need this as a Finchel duet in s4 after the Break-Up and right after that have them get back together.

I Wanna Know What Love Is by Foreigner. Cory kept talking about this song and idk why they never gave it to him. His voice and him playing drums on this would have been heavenly (tbh I'll say that about all songs Cory would perform, but this one specifically). It could have been a s2 song. Maybe from the s2 Finale or right before the Finale.

Classic by MKTO. It could be a fun prom song that he sings for Rachel if him and Rachel are chaperones at Tina's senior prom.

good 4 u by Olivia Rodrigo. I would just love to hear him perform this song.

Welcome To My Life by Simple Plan. And other songs by emo bands of the early 2000s. Like Cory's voice on those kind of songs would have been so good. Or we could have had duets with Tina and Finn on those kind of emopunk/emopop songs. Idk why Glee didn't cover more of those. I just need Finn singing angsty songs.

Don't Rain On My Parade by Lea Michele. Just because I wanna hear that song in his voice. Like I wish he'd cover a song she sang and that she'd cover a song he sang (don't ask me which one because I don't know yet lol).

This is such a cute question!!

It's probably the Finn allergy scene in Trick-or-Treat or Cat.

Finn missed what happened as his costume got caught in the mailbox and he was trying to get unstuck. He walked over to Sugar, surprised to see the two cats who were yowling and growling at each other.

...

Rachel tried to claw at her but Santana dodged and then the black cat started attacking. Rachel ran to hide behind Finn and climbed on his shoulder. She was really good at climbing in this form. Her paws were very grippy and she was way more agile than in her normal, human form.

"Hello there." Finn looked at the tortoiseshell surprised, before starting to sneeze uncontrollably. "Uh oh..."

...

"I'm sorry, Tiny Cat, you're really cute but I'm really a-...all-...allergic..." Finn grabbed Rachel off his shoulder and placed her down on the ground before going to lie down on the grass.

...

"I think these cats are stray. I'm gonna have to take them in. It's way too cold for cats to be out. Oh man, I'll need a ton of allergy medicine." He started ranting, feeling very concerned about this major change in his life.

...

Sure enough, the two cats turned back into Rachel and Santana. Finn missed the transformation again as he was too busy dealing with his allergy episode.

...

"Rachel, Santana. You missed these two cats. They were really loud and fighty and kinda funny." Finn sniffled, walking up to them. "Where were you guys?"

That or the entirety of the Chicken fic. That's another Finn masterpiece:

Finn learned a lot about show choir over his years of high school, and he knew that chickens don't belong in the Glee club. He tried to rationalize the situation. It was too early in the year for a senior prank, but he had to admit that releasing a chicken in the school would have been a funny idea for a prank. The only other possible explanation that Finn could think of was that the chicken was a ghost that was haunting the auditorium. Rachel did tell him about a play once where a ghost was haunting a theater, or something like that. He wasn't completely sure on the details and he would probably have to ask Rachel about that play again or find the movie version of it so he would know what to do about the chicken.