Happy Belated B-Day (April 9th) to myself! My gift is a cute idea. Ship Suggestions (And the person flirting with them):

-Kamaniwa
-Iwaoi
-Asanoya
-KuroKen (Lev)
-Bokuaka (Konoha)

-Having an argument over using a specific body wash/bath bomb

-Washing each other's hair

-Playing around with the bubbles

-Accidently getting soap in  the other's eyes

-One of them freezing/burning their ass at the other's preferred temperature

-One of them making fun of the other massive amount of hair care products

-One of them barely fitting in the tub/under the showerhead 

-One of them slipping and falling on their ass (And possibly grabbing the shower curtain to keep from falling and taking it down with them)

-Singing in the shower togther

-And, well yeah know. The horizontal tango.