Natsu Dragneel

Natsu Dragneel is the leading male protagonist of Fairy Tail.

Episode 21
Erza Scarlet mentions that she used to take Off Screen Baths with Natsu and Gray Fullbuster when they were younger.

Episode 29
While breaking into Lucy Heartfilia's house to look for her, Natsu is seen Clothed Bathing as he apparently looks in her bathroom.