I am really familiar with this particular behavior...my Pinot does that to my husband. I hate to burst any bubbles on attachment (which may be the case), but...it's probably your deodorant. Pinot goes CRAZY over two things - my husband's roll on (Ban, I think) and my moisturizer. She tries to bury her face in his armpit, and she licks me anywhere I've put moisturizer in the morning.

So, it may be an attachment, or chemical!

In any case, bless you for what you're doing. Thanks!