They run into the girls bathroom

In his/her haste, Natsu/Cana ran into the girl's bathroom and hastily locked the stall door as he/she struggled to undo his/her pants. Cana/Natsu followed and banged on the stall door.

"Natsu, you better not do this!" Cana/Natsu threatened.

"I"m sorry Cana, but I can't hold it in anymore!" Natsu/Cana squealed desperately.

As Cana/Natsu kept banging on the door...