Only shower sex!

I've been with my bf for over 3 years and we've had a really good sex life. At first it was mainly in the bedroom. Than over the years a mix between that and the shower. Now for the past 2 months it's been mainly shower!

We both go to college and I only see him Thursday night-Sunday, so when I do see him we both just want to take a shower and relax. It's convenient for the both of us, but I just miss having bedroom sex. I know I shouldn't be complaining because we have been consistently having sex the same amount as always, but I need something new. I will adjust shower sex was so hot at first. I'm an over thinker, so last night was one of those bad nights where I just could not stop worrying about something & my bf was just on the phone getting annoyed (but was so patient at the same time). We both are having a great day, so I don't want to bother him when we call tonight why we're just doing it in the shower. I want to just tell him that I want to start having sex in different places again, but just want to put it casually. What do I do?