lol
The second one is the most popular, but nothing is stopping you from a cumshot I guess. A lot of people in the community are really immature and only talk about and draw shitty art/write shitty fanfiction with "fingering" (literally just poking a belly button) and licking, if you dare mention a penis there's gonna be shitstorm. Again it's my point with there being so many autists, children, and autistic children in the community.
Personally I like anything involving navels, so yes that includes both things you said.
Everyone has their preference, but innies are most preferred if I had to guess. I personally like both, along with many others, it's apples vs. oranges really. Don't forget about the elusive inbetweenie, an innie that can be popped out into an outie.
Don't worry, I'm familiar with how this site works lol.
As a person who gets a boner from seeing belly buttons, I felt that it was my civic duty to write that post and inform everyone here on this wonderful site about my weird and somewhat unknown fetish, and why I at the very least don't want to be associated with Bryce.
pls dont kinkshame, it hurts my feelings