I could be Rarity for this RP, but it would be nice to know what is it going to be about.

Twilight:*reading*I need some water.I love this book,so I am using magic.*magic doesn't work*Ahahahahahahah!Rarityyyyyyy!

(I see. All right let's give it a shot. Hope others will join too. Also, this is the first time when I'm playing as Rarity. :)
Rarity: *trots into the library* What is it darling? Oh my goodness, you look terrible! What happened?

Twilight:I can't do magic anymore!I am so scared!There must be an explenation for this!

Rarity: All right, just calm down. Maybe you're just tired. You've been doing a lot of research on alicorn magic lately. Perhaps all you need is some rest... um... and probably a neat mane cut.

Twilight:You are right.I just need to rest.Mabye it will work!

I'm using my oc character Kimmy

Kimmy: what's all the commotion?

Apple Jack:What is going on?I heard Twilight screaming and I camed as fast as I could.

Rarity: I would recommend you visit the spa. There's nothing more relaxing than a warm mud bath and some revitalizing balsams on your face, oh! *giggles*

Twilight:It's my horn,my horn*crying*

Kimmy: you're horn's not doing magic anymore

Twilight:Yes,yes!*still crying*

Kimmy: gosh that's awful Twilight

Twilight:More than awful.

Rarity: Just hold on a second here! Let's not jump to any conclusion, my dear. Why don't you send a letter to Princess Celestia? I'm sure she'll know what to do.

Kimmy: maybe Spike can send a letter to Princess Celestia

Twilight:Spike isn't here.He is with vecations.
(Till a person gets spikes character,there is no spike:)

Kimmy: well I could send the letter to Princess Celestia

Rarity: Don't worry, Twilight, we'll figure something out!

Kimmy: *sends the letter to Princess Celestia about Twilight's horn not working anymore*

Twilight:There"s got to be an explenation for this.I will need 2 hours to fly to canterlot so it"s no use!!*crying*Princess Celestia is in Saddle Arabia now.

Kimmy: well I send the letter to Princess Celestia it's heading to Saddle Arabia

Twilight:You can"t send any letter to Saddle Arabia.The princess has done a proctective spell,and nothing can come in without comfirmation first.It needs a veryficaded pony magic and then it can pass.The princess or anyone there doesn't know you.Plus,you are an earth pony and still a filly.

Kimmy: oh good point

Twilight:What am I going to do now???

Kimmy: *hugs Twilight*

Twilight:*starts to turn crazy*I know.I can play with Smarty Pants.*gets up of the bed*

Rainbow Dash:What is going on?Did I miss something?What's that?Twilight,what happened to you?

Twilight:My horn.*playing with smarty pants*

I will join with Flutter Shy.

Flutter Shy:Oh,darling,what is going on with you?You look so dizzy.....

Twilight:*thinking*Get a hold of your self,now!!!!*gives a slap to her face*I am better now.

Rainbow Dash:Twilight,do you want to come with me for a ride on the sky?

I will join with Pinkie Pie.

Pinkie Pie:Haha.You look so funny Twilight.You look silly.

Twilight:Sure Rainbow.Till princess comes,I will have fun.

Kimmy: just don't go crazy like you did already