Join Yang in the shower

As Ruby hears the shower start she realizes her chance for more affection is already here. Ruby quickly strips down in the locker room to only a towel and sets her clothes in the locker Yang is using before heading to the shower stalls. Yang is the only one in taking a shower which makes it easy to find her stall.

Yang has her eyes closed and is enjoying the warm shower when suddenly she feels someone grab her large breasts from behind.

"Surprise hu-OOF!" Ruby is cut off as Yang elbows her in the stomach on instinct. Quickly realizing it was her sister, Yang's anger evaporates to worry.

"Oh my gosh I'm so sorry Ruby." Yang quickly turns around and checks that Ruby is okay. Seeing her sister naked isn't much of a shock to Yang as they grew up together.

"I'm alright Yang, I just thought we could shower together." Ruby suggests.

Yang does blush at the thought. "Together? Are you sure?"

"Please? It would make up for elbowing me." Ruby asks again as her eyes flash silver once more. Yang is hit by the effect.

"Sure Ruby, let's shower together." Yang replies with a smile.

"Yay! Can you wash me then?" Ruby chirps back making Yang chuckle as she grabs the body wash and her loofah as she begins washing her sisters lithe body. The water glistens over Ruby's thin body as Yang appreciates the view. She makes sure to spend extra time washing her sister's smaller breasts. Although not as big as Yang's double Ds, they are still an admirable c cup. Ruby moans as her sister massages her chest, playfully pushing Ruby up against the shower wall.

"I'm supposed to be cleaning you but I think I'm just filling you with dirty thoughts." Yang puns before kissing the nape of Ruby's neck.

Ruby blushes. "Yaaang." She bemoans as she moans. Yang simply gives her a half lidded gaze before pulling her in for a kiss. Ruby's mouth opens as she kisses back more confidently, now feeling in control. Their bodies and breasts press against each other, hard nipples poking the other sibling's skin as they share saliva. The taboo nature filling Ruby with a perverted and deviant desire for more.