My wife and I have an open ethically non monogamous relationship and we both have girlfriends. I’ve found that being open and communicative with both relationships reveals a lot about my boundaries and preferences. For instance, they’re both loud but my gf talks more than my wife and about things that I’m not necessarily in to. So I appreciate my wife more for the silence that she allows me and the depth of conversations we have.
I’ll get real honest here. My gf adores my penis and we have a lot of fun. I won’t go into the nitty gritty details here. My wife hasn’t shown or expressed much interest in sex, and I know that’s something we both need to work on in our relationship. But just having the release and the boost in confidence from my encounters with my gf lets me know it’s not a lost cause between me and my wife. And when we do reconnect on that level, I’m gonna be a way better lover with more confidence in myself and abilities, which I couldn’t overcome with my wife alone.
It’s really eye opening when you open yourself up to poly relationships, yet keep a keen interest in your primary. I think it makes everyone involved more self-aware and aware of other’s needs.