I have a girl i like. . .like alot. She's one of my closest friends.

Anyway She's done a cosplay as my character Kyrii. . .and she looked awesome in it.

My fantasy. . .well I'm hoping one day she'll make a barefoot gts video for me in that cosplay. . .its a simple idea but. . .It would honestly mean the world to me ^^

I hope she does this for you. Do you have a picture of this cosplayer?

She had done a private shoot for me. I can share one out of it but i wouldn't share more since it's a gift for me
I included a picture of the outfit she's cosplayed as.

Loving the hair and ears! Gorgeous! Very hot photo and picture! Thank you x

What is your relationship with her. I know you like her a lot and that is usually neutral but if you were messing around could you place her into the situation of doing gts without the costume. If she is Okay doing the gts then the costume would be another step.
If gts is too intimate contact for her then you have not fully exposed your cosplayed fantasy to her.
Good luck