Showers are a very popular choice for rooms and sex. Hopefully Achat will take note and create one for us.
See here for the topic on the Shower Idea
Topics » Share your creative ideas » Pose Idea. Shower Pose.
https://funnyadultgamesplay.com/forums/topic/shower/
An in game light dimmer is a good idea too.
Although we have not got it as yet in the Achat game, you could use your keyboard to dim or brighten your screen. Its worth a try.
I know some keyboards are different so you may have to look for it.
My brightness keys are on the top row, 4 & 5 keys in. They look something like this