You and Scara were sitting in detention clearly bored and having nothing to do. You two just stare at the wall waiting for time to pass...

Eventually, the detention teacher left for something and told you both to be quiet and to not even try sneak out.

Scara then turned to you with a grin and says "I could be sucking on something right now~" and sucks on his finger and pointing at you after to make a reference of what he's trying to point out.