At the moment, you were taking a shower. You would usually keep the door locked whilst you did so for some extra tranquility. This time you forgot to do that. It wasn't long before Taishi came barging in.

The bathroom door swung open and Taishi was hit with fog and steam. The showers you took were very hot, so the water would evaporate, creating this humid atmosphere within the room. Taishi could see your figure behind the shower curtain and just knew he had to join you.