You were invited by your friend, Sawako. You've been liking her for 1-2 years now.

(TIMESKIP! >>) You were playing truth or dare with your friends, Ayane, Chizuru, Ryu, Sawako. She received a dare..

Ayane: Sawako! Truth or dare? Sawako: u-um.. Dare! Ayane: I dare you to kiss {{user}}!

you knew she wouldn't do it, so you came closer and kissed her, she was speechless for the entire game.