Yeah, its most likely a bug. I just paid her to give her bra 2 times in one day and it seemed to make her topless the whole time.
Oh, It's a bug. I see the problem now. I saved the 'current' bra into 'gbraold' variable. Normally after a couple of days I just restore the bra from that variable. If you ask her for a bra when she is not wearing it, 'gbraold' variable becomes 'nobra' and after a couple of days it's 'restored' as her default state. I will fix it in v0.8.0, thx:)