> "Mmm~, thank you..." Massage the shampoo into her scalp vigorously.
> When that's done, fill up the bucket. "Okay, close you eyes so soap doesn't get in." When she does, pour the water carefully, and make sure she's completely soap and shampoo free. Use multiple buckets, if necessary.
> Take off our towel and throw it on top of Kogasa's. Sit down on a stool. "Okay, my turn~!"