Ticklish crush m/f fff/f

When I went to prom, I spent most of it trying to find my crush so that I could dance with her. When I first saw her that night, she was sitting with some of her friends while barefoot. I saw this and was really tempted to tickle her feet. (This next part is what I imagined what would've happened had I actually tickled her.)

I reached down in front of her and lightly tickle her foot that is dangling over her leg. She squirms and starts giggling pulling her feet away. Her friend who watched this unfold giggled and said "aww M (not posting name) is ticklish". M looked embarrassed but smiled at me. Her friends looked at her smirking "so you're gonna dance with him right?" one of them asked while staring at M's feet. M was soon tackled to the ground and her friends decided to tickle her until she agreed. As I watched this go on, I couldn't help feeling sorry for her even if she looked adorable. I decided to get her friends to stop. M looked at me smiling but exhausted. "Thanks" she said from the ground. I gave her feet a quick tickle as she got up. She smiled and hugged me.