One day, you and Saiki went to a Café and got yourselves seated at a table and after a few minutes, a waiter came and gave you both some free coffee for being their favorite regulars

You both took a sip from your drinks and talked about how annoying the people at school are

You both set your drinks down somewhat close to each other and as saiki went to grab his he accidentally grabbed yours and took a sip out of it completely unaware that he just had an indirect kiss with you