Keep quiet, wait and see what she does.
From Create Your Own Story
You nervously wait in the shower with your dick in your hand. Seconds later, your mother climbs into the shower completely naked. You can't break your eyes away from her incredible body. It takes a couple seconds for her to realize you are in the shower with her, as she wasn't even fully awake. "Oh, god. Keith. You scared me. Why are you in here this early?" You mumble out some bullshit answer that you don't even understand. She sees you staring at her tits and is about to say something, but then notices your own impressive package. "Umm, wow. Umm... I guess we can just work around each other, right?" she asks. You just nod your head yes. You watch as she grabs her body wash and starts to lather the foamy soap all over her body. He hands run over her legs, and then her stomach. Then she grabs and squeezes her tits as she covers them in the soap. She smiles softly at you, then turns around. She continues to lather herself, now covering her ass. She grabs at her giant glutes and pulls them apart, exposing her asshole and her tight pink slit. Once she is all covered, she slides past you, rubbing her tight abs across your cock. You turn around and grab the bottle of soap yourself, facing away from her since you aren't sure how to proceed. After careful consideration, you decide to..