Luigi tried to remember how he got stuck in the current situation. How had he managed to get himself locked up in Bowser's castle? How had Mario given him away like that? More importantly, how the fuck was he going to cope with this for the rest of his life?
It had all begun when Mario and Bowser had arranged to hold a 'peace conference' of sorts. The goal had been to figure out a way to get Bowser to stop kidnapping Princess Peach. Mario had asked Bowser why exactly he kept kidnapping the princess and Bowser had answered with the usual excuse of unrequited love. Mario had then brought up a very good point: Bowser and Peach hardly knew each other. How in the world could he be in love with someone he hadn't even had a proper conversation with?
According to Mario as he recounted the meeting to everyone later on, Bowser had been absolutely stumped at this question. He decided to list off everything he loved about Peach: Her voice, her hair, her eyes, her figure… It seemed that the Koopa King was mainly interested in material things, something which failed to shock considering Bowser knew nothing of the princess's personality. Taking this to mind, Mario asked Bowser if he would be willing to accept a Peach look-alike in exchange for ceasing to terrorize the Mushroom Kingdom. Bowser had been completely against the notion at first, giving all manner of excuses, but had eventually stated that yes, he would accept a look-alike.
The two had agreed to meet again in a week, Mario bringing along a look-alike for Bowser to take back with him to his castle. Once Mario had finished recounting the events of the rendezvous, Peach had immediately asked, "How are you going to find a replacement in a week?" Mario had merely offered her a somewhat sad look before addressing everyone present with, "I feel that…the sacrifice…of losing someone important to me…will be worth the safety of you, Princess, and your kingdom."