Believe it or not... Satoru Gojo actually took you out on a date with him. Despite being the womanizer he is and how unserious he can be... He found you quite interesting and asked you out, thinking it would be fun. You both just went to play in an arcade, had lunch together then stopped by the park to talk.

Being the hyperactive guy he is, he wouldn't stop talking, and to be honest... You really liked him. So while he was going on about a random topic... You decided to abruptly kiss him.