Originally Posted by km34
I don't see this supporting poly at all.
I see Mario turning a blind eye and dismissing the possibility of something going on. I see Luigi and the Princess sneaking and hiding their relationship from Mario.
While I'm pretty sure that's what's implied, this way of holding hands seems poly to me. They're holding hands around Mario's waist, there is no way he's unaware of it. Practically, that is.
Yes, with the theme, the title, the description, etc, it's obvious the design is meant to be able Luigi and Peach going behind Mario's back, figuratively as well as literally. But I can see interpreting it in a different way too.