My partner has two half-sleeve tribal tattoos...our fur-babies slept in our bed back then the whole time. I have a few piercings myself and Shay slept curled up against me the whole time. I have also had surgery (tummy tuck after my kids) and Trini & Coco were in bed with me as well, so ????? All I can say is, some people don't understand our fur-babies & some people never will???
Also, as Jen218 said I believe Yorkies (and a few other breeds) do not have as much dander as most breeds and that is why people with allergies can usually tolerate them.
Well, enjoy your belly button piercing. Just be careful, lol, they are addictive

I have 5 "unconventional" piercings and want another soon...and by looking at me I don't think you could ever tell