Is it normal to want to hug your best friend constantly?

I have a best friend who I'm very close to (let's call her Sarah for now), we went to school together for years but even after leaving school we are extremely close (in a non sexual way). She casually says from time to time that I am her sister and I'm ok with that. At the moment she lives over a hundred miles away so it's been a long distance friendship for a little while now, but we still chat every now and then, and she keeps sending me cute memes that remind me of her and we keep telling each other that we love each other a lot. We do - but in a non-sexual way as I said. You could call it platonic love I guess. So is it normal that I constantly fantasise being hugged by her? I go to sleep hugging a pillow and imagining it is her. Furthermore, whenever my sister leaves the room (we share a bedroom) I immediately grab the spare pillow and hug it, imagining it is Sarah. Is this normal at all? I do love her a lot, but in a non sexual way, and I'd just like to make that clear :D