Context: Me and my partner both met in school and have many mutual friends. No one is aware of our relationship besides us. I haven't figured out what exactly we are yet, but we kind of have a FWB-type relationship.
Me and my partner, both NB-16, became more than friends a few months ago during a sleepover that didn't go as originally planned (consensual on both sides). Ever since then, an issue has come up that I don't know how to resolve without crossing boundaries.
My partner very quickly decided that they were a bottom and they are very uncomfortable/hesitant with exploring the other role. This would be fine, but swapping roles is something I constantly crave. We've attempted it before, but either my partner got uncomfortable or my body wasn't cooperating. Because of this I often feel unsatisfied or sad. Making them happy is so incredibly important to me, but I've been unable to stop feeling like this.
I know that communication is key and that I need to tell my partner about my feelings, but i don't know how to without crossing boundaries or pressuring them. While finding a compromise would be amazing, their happiness is more important.
Does anyone have suggestions on how I could go about bringing this up? Ideas on ways to compromise would also be appreciated.