This is strictly for all you "innies" out there ;)
Stick a finger in and take a whiff. Surprising, isn't it?
Don't think i'm a sicko, lol. My younger brother discovered this and immediately showed me. Yuck. I've never noticed before!
I guess it's because of all the buildup of sweat, dirt, etc..
Don't forget to wash and dry your belly button!
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