Erza Scarlet

Erza Scarlet is a character from Fairy Tail. Erza used to bathe with Natsu Dragneel and Gray Fullbuster when they were younger and is still open to the idea of bathing with males.

Chapter 51
She is seen having a Shower at the Fairy Tail guild's shower room after retreating from a battle against the members of Phantom Lord. In the shower she thinks to herself of how impossible the battle they are in because of the guild masters defeat and the guilds strongest mages absences and punches the wall in anger thinking that she should have been with the master in battle. While still in the shower, she and rest of the members of Fairy Tail feel the ground moving. When everybody is outside seeing that Phantom Lord is going to destroy Fairy Tail with a giant laser, Erza is seen along them wearing only in a Towel where she tells everybody to get back as the chapter ends.

Chapter 52
Still in a Towel after her Shower in the previous chapter, Erza charges toward the now mobile Phantom Lord guild and drops her towel and quickly exquips in armor to try and stop the laser from hitting the Fairy Tail guild.

Chapter 228
Erza has an unofficial Skinny Dipping scene during her fight with Meredy in the middle of a pond, as she uses her ex-quipping which briefly makes her naked to switch armors.

Chapter 265
Erza has a Bubble Bath in a strange flower shaped bathtub while Singing and crossing her legs at the sleeping quarters of the Honeybone Lodge. After her bath, she inspects the rest of the room in only a Towel to see if there is anything suspicious about the room.

Chapter 341
Although Erza was not present during the Public Bath scene, the girls suspected that the red haired girl that they saw in the bath was Erza but instead was actually Flare Corona who was still stalking Lucy Heartfilia.

Episode 21
Erza takes an off-screen bath at Lucy's house. She has her bath before Lucy.

Episode 23
she is seen having a Shower at the Fairy Tail guild after retreating from a battle against the members of Phantom Lord, In the shower she flashes back to the battle of her comrades being defeated and gets angry and punches the wall when she has a flashback of the guild master being defeated. When the members of Fairy Tail feel the ground moving, Erza is outside with the rest of them wearing only a purple towel. When Erza sees that Phantom Lord is going to destroy Fairy Tail with a giant laser, she runs off dropping her towel and magical ex-quips into armor to try and stop it.

Episode 153
Erza is seen in a Bathrobe along with Juvia Lockser, Levy McGarden, Charle, Wendy Marvell and Lucy Heartfilia after having an Off Screen Bath in an Onsen which was shown in the 4th OVA.

Episode 155
She is seen taking a Bubble Bath in the Honeybone Lodge.

Trivia

 * Erza Scarlet is the first character in Fairy Tail to be shown taking a Shower.
 * Erza is the only female character in the Fairy Tail anime to be shown taking a Bubble Bath as Ultear Milkovich's was skipped.