Sent to settle a debt

Mike owed $250 to a loan-shark. Though not a serious amount of money, the fact that he hadn't repaid him yet was an insult to the dangerous loaner. Mike didn't have the money to give to him, but he did have an idea. He took his girlfriend, bound her hands behind her back and pegged $25 to her naked body. Every day she stayed would equate to another $25, will she stay for 9 days to cover the full $225, or will her humiliating and degrading stay result in her uttering the safeword "treehouse"?