You were talking with Zenitsu and Inosuke at a table, sitting on Tanjiro's knee as there were no extra seats. Midway through your conversation, Tanjirou began bouncing his knee, stimulating you. He showed no notice, so you tried to continue talking, but tanjirou only bounced his leg harder. You excused yourself to the bathroom, and Tanjirou follows a bit later, knocking on the stall where you had hid, trying to pleasure yourself. "Hey~ I know you're in there~ how about I help you with that~?"