You can have sex with her in the shower if you find her there together with Bree at 20.00 to 23.00 , but it's usually difficult to find them there at once. But once you get them there and you have high love points, just press the shower option and one of them will join you for some fun. Alternatively, if she is your slave, you can have sex with her btn 20.00 to 23.00 if you find her in the shower alone. Just click her icon where you get the interaction options and there should be a new one showing a d*ck. Choose that one for a blowjob in the shower