To be fair: Butts are a pretty good thing to like.

Good enough reasoning for me on your part, at least!

Despite what most think, bisexuality and pansexuality are somewhat interchangeable, as bisexuality is attraction toward any gender. Some try to argue that bisexuality is inherently transphobic, but it's simply not understanding the full breadth of that it means. So, whichever you're more comfortable with using! They mean the same thing, in essence, and you've got full support here from whichever you choose :D

I believe you mean pride moth

The only real difference between Bisexual and Pansexual that I've noticed in just, which community you'd like to be a part of. The Bisexual community is older and generally older individuals are part of it because of that. Pansexual is a more recent label, and the community is younger. It's a term a lot of people pick up quicker than Bisexual because they haven't yet learned that Bisexual and Pansexual are for the most part the same.
It's mostly preference, and you can label yourself however you want!
I personally ID as pansexual, because I found that label first and felt it fit me better at the time, and now I just enjoy the pansexual community! My roommate is Bisexual, and we commiserate about the fact that NO ONE BELIEVES WE EXIST