Serena threw some water on his hand. He started running around due to the pain

Serena: Wait! Don't panic! Take off the glove, fast!

He did as he was told, then Serena grabbed his other hand (that's not burned) and ran to the sink, and turned on the tap to cool water.

Serena: Now don't move the hand away from the running water for about 20 minutes, okay?

James: Mhm..

~Time skip~

It has been twenty minutes, Serena told James to take his hand out of the water. She then covered him with a blanket, except for the part where his hand was burned. (This is not romantic, I searched it up on google)

Serena: Please keep this on, it will prevent hypothermia

James: Okay..

~More Time Skips~

Serena: Let's see, okay your body temperature is below 35C, Now hand me your hand.

He handed out his hand, and Serena layed a clean, plastic bag on his hand. Then she treated it with paracetamol.

Serena: Please raise the hand until you feel better.

~A few minutes later~

James's hand was getting better slowly, until it got better. Then his hand felt like normal again.

Serena: Hey James, you feel your hand normal again?

James: Yeah.. Thank you.

Serena: It's okay, that's what a friend is for!

James: You- You're my friend?

Serena: Of course! You're a pretty cool guy, James! You want to continue?

James: How about you hold it this time?

Serena: *laughs* Okay.

She jiggled it, then her gloved fingers were on green fire.

James: It doesn't hurt?

Serena: Nope! It's just a tiny bit, so it won't really burn.

James: Oh, cool! Can you teach me more about chemistry?

Serena: I'd love to!

Little did they know, a girl was watching them from a window

???: They're never going to beat me, and I'll make that sure...