I don't know why I wondered thisbut I did.
The Pocket In Women's Knickers: What Is It Actually For?
Cato Fashions Cato Cinched Waist Brief Set
What's the Pocket in Women's Underwear For?
મહિલાઓના અન્ડરવેરમાં પોકેટ કેમ હોય છે? આવો જાણીએ - Why Do Women's Underwear Have Pockets
The Real Reason Women Have Underwear Pockets - Forgot To Think
What's the Pocket in Women's Underwear For?
hiddengussetpouch
This Is Why Underwear Has A Pocket Inside!
Why do underwear briefs have pockets? - Quora