Dare by @ActuallyOddPlanYT 

I dare grian to say yes to Mumbo for 24 hours (yes I changed the way you wrote it) 

Hi Mumbo!

Mumbo: Um, do I know you?

No but I know you, I am the author host thing, I don't fully get it. 

Mumbo: Ok? So why are you here, talking to me?

Grian has a dare that involves you.

Mumbo: so what's the dare? 

Grian has to say yes to you for 24 hours. 

Mumbo:This will be fun. Can I come with you when you tell grian? 

sure.

With grian:

Mumbo: hey grian, I want you to meet someone! 

I can introduce myself, Mumbo. 

Grian: Mumbo, who is the golden retriever next to you? 

I'm the host/author, grian. 

Grian: why do you look like a golden retriever? 

Because I am. I am also a siren once I touch water and when I get mad I turn into a devil

Mumbo: anyway, what is your name golden retriever? 

My name is grianfan but I usually just get called gfan.

Mumbo: ok gfan, are you going to tell grian the dare? 

Oh, yes, grian you have been dared by @ActuallyOddPlanYT

 to say yes to Mumbo For 24 hours. 

Grian: um, can I do something else? 

Nope.

Timer starts now.

Mumbo: grian, can you help me with redstone? 

Grian: yes.

Mumbo:Okay, go get started on a T flip flop (I don't know redstone so I don't know if that's correct), I will give you the supplies. 

Grian: yes. 

12 hours later 

How did it take you two 12 hours to do some simple redstone? 

Mumbo: grian kept on blowing it up. 

Grian: he wouldn't let me use a tutorial video! 

No need to yell grian, Mumbo, how about you do

 some building with grian for the next 12 hours 

Mumbo: ok. Grian, can you please teach me some building techniques? 

Grian: even if I wasn't doing this challenge I would agree to that Mumbo! 

6 hours later 

Mumbo: hey gri?

Grian: yes? 

Mumbo: d-do y-you have a c-crush?

Grian: yes.

Mumbo: can you tell me you're crush? 

Grian: yes. It's you. 

Grian runs of crying embarrassed that he told his crush that he loved him (this was me in grade five minus the crying)

Smooth move, Mumbo. 

Mumbo: but, I, I, he probably hates me now 

First of, he doesn't hate you and second,

 I got your back so don't worry, be happy. 

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So, I ran out of ideas and I still need to work on 2 other dares (yes I did start this dare before the first dare that was given because I write what I want, when I want)