AN: I'm excited for this game, so this is written way before it came out and way before I've ever actually seen the real opening cutscene.
"Why haven't you given up on me, yet? Surely there are other princesses, aside from me and my cousin Daisy, out there who you could torment more than me." Princess Peach asked her captor in frustration rubbing her temples as he hoisted her over his shoulder yet again, though he was careful enough that she wouldn't end up gouging an eye out from one of his shell spikes.
"Give up on you?" Bowser scoffed at the notion wondering where she had even gotten the idea and especially at her little suggestion. "Never. You're the only one for me, Peachy. And no plumber is going to ever stop me from that either!"
"Ex-plumber." She corrected simply to annoy him, even if it was true.
"Whatever! Besides the fact that you're the only one right next door to my kingdom, soon to be our kingdom, the point is I have been and will always be loyal to you until my game is over, and again, that pesky plumber isn't getting in my way, ex-plumber or not!" Bowser shot back sounding surprisingly sincere for the key parts of it that caught her ear and left her confused.
"Bowser, what do you-?!" Peach started to ask but then noticed that they had reached his airship, but there was a huge difference about it, it was painted white. There was also purple banners everywhere with Piranha Plants arranged with little flowers to make it more decorative. She had finally added things together, since Bowser was also dressed rather formally in white and purple, he even had shoes for once which was impressive. Of all things, she knew he would try to do someday, she couldn't help but wonder why he was trying it now.
Bowser set her down as soon as his clown car reached the deck. Something happened as soon as she was on board the airship but Peach couldn't dwell on it because Bowser had her attention again.
"Now, Peachy, I have a little present for you…" Bowser began, snapping his fingers and instantly a fluffle of menacing looking bunnies also dressed formally and the smaller female of the fluffle had a very ornate tiara on a red velvet pillow. Bowser then gingerly lifted the tiara from the pillow and started moving towards her and a motion towards her own crown since he obviously wanted her to wear the tiara right then and there. She took a step back instinctively, but simultaneously also noticed that the tiara had eyes with pink irises, and she looked worried and scared.
"Bowser…What. Did. You. Do?" Peach annunciated slowly to get the point of her growing anger across.
"Now Peachy, I'm going all out for our wedding, so of course I went and got the most perfect wedding tiara that comes with her own veil! And that's just the start! These are the Broodals," he gestured to the bunnies and continued rather cheerfully. "And they're helping me plan the wedding and gather everything that we need for it!"
"And let me guess, not only did you kidnap another being but you're also stealing everything needed for a wedding that you and I both know is not going to actually happen because Mario-!" Peach shrilled at him furiously, but he interrupted her with logic.
"Won't be able to legally stop a Royal wedding." Bowser grinned like a Cheshire cat as he said it, and somehow was able to widen it as the look of horror on her face grew in realization.
Princess Peach Toadstool knew well enough that it was embarrassing to be known for constantly being kidnapped by the same kidnapper. It didn't help that said kidnapper's original motive was political, and somewhere along the way became personal for two different reasons. First and foremost was to defeat Mario once and for all, and second but sometimes equal to the first was marrying her, but usually that goal was reserved for the off chance that Mario would be defeated.
However, Peach could only guess someone finally tipped him off about Royal weddings being different than normal ones, in that they were for life, divorce wasn't even an option…usually… depending on the country, or in this case, Kingdom. Even Mario could do nothing about it because they were so legally binding, and that was the goal Bowser most likely jumped right onto, because then he'd be killing two birds with one stone. Just like he's always wanted.
"Don't deny it Peachy, neither of us are getting any younger and I'm sure your council has been pestering you lately to settle down. So why not shut them up and get it over with already with the one monarch close enough to finally bring our kingdoms together. That way, your people, soon to be our people, will finally have the political security they need to be safe from anyone else foolish enough to try and conquer them." Bowser reminded her calmly, and unfortunately for Peach it was a very logical explanation.
Unfortunately for Bowser, her determination persisted.
"Forcing an alliance like this, is not going to make me marry you!" She spat, hating that he was using the good for her people against her. "Mario will find a way to stop you-! Stop it! Let her go!"
This time her interruption from Bowser came from an action that was admittedly her doing, as Bowser detested Mario's name despite wanting a fair enough rematch that has him come out on top instead of the ex-plumber. Bowser was crushing the tiara being in his claw at the mention of Mario's name, and at Peach's worry over the poor thing, he gave a small mercy by tossing the tiara towards the Princess, and just as he expected the tiara transformed into her true form as he had found her in the Cap Kingdom. She was a little ghost thing who's entire top half was the tiara she was as well as a wedding veil, and she hid right behind Princess Peach as soon as Bowser tossed her that way.
Peach was startled at first because the transformation was so sudden, and she wasn't expecting the tiara to be Boo-like. However, she had more important things to worry about such as the reminder that the creature now hiding behind her was also taken from her home, and Peach decided to stand her ground against Bowser about that.
"Honestly! And here I thought you weren't ever going to kidnap anyone else and stay loyal to me!" Peach huffed that last part just to twist his words around and tease him and throw him off guard. Thankfully it worked, and while Bowser stuttered out his shocked response, Peach had her hands behind her back and signed to Tiara to run by doing a walking motion with two fingers and pointing in the general direction of the side of the airship.
"Wh-a, I didn't say I wasn't gonna kidnap anyone else-! I-I mean… Oh, for Grambi's sake, Peach she doesn't count, she's part hat! I nabbed her from the Cap Kingdom and then came and got you!" Bowser managed to retort vaguely hearing the tiara boo thing make a vocalable of 'Uh-uh'.
"There's no way I can leave you here with him, if we leave, we leave together!" Tiara whispered insistently to Peach.
"And that's another thing, Bowser! There's a chance another Chaos Heart will appear if we get married! I can't go through all that again!" Peach shot back at her captor, and quickly reached up and threw her crown at Bowser's head, aiming for his silly looking top hat, grabbed the tiara boo's nubby arm and ran for the side of the airship, she didn't care how high they were, Mario was bound to catch up and with luck could catch her out of the air, but even she knew she couldn't be that lucky in any lifetime.
It didn't help that as soon as she hit the edge of the airship she was bounced back by something blocking her, but the momentum was strong enough to push her to the ground.
"Sweet mother of Jaydes, you actually tried to jump off the ship! Don't tell me you'd rather your game be over than marry me? Duty over love, Peachy, remember?" Bowser told her in a rather boastful manner. His countenance softened a bit as he continued though. "You don't have to love me you know, but I honestly can't live without you, and this is the only way I can ensure that you'll stay in my life and that blasted Mario won't be able to do anything about it!" Of course as he brought Mario up himself, he couldn't help but get angry again at the thought. "And don't even think about escaping, I enchanted the whole ship to prevent your essence from leaving, same goes for Tiara here….Yeah, that's her name too, but no surprise there right?"
"My lord! There's a persistent jumping man headed our way from behind us!" Called Spewart, the Broodal in blue.
"And there he is right on cue…" Bowser muttered to himself before turning back to Peach and found that she had already picked herself up, looking miserable as ever, a single glance from those sad eyes of hers were enough to nearly break his heart. So, gently he replied to her earlier statement before she tried to jump ship. "Listen, I don't know about the Chaos Heart, but if I know magic well enough, then it's kinda like how lightning doesn't strike the same place twice in the same storm. So I highly doubt it's gonna pop up again when you say 'I do' this time."
Princess Peach looked away sadly, Tiara floating in closer to her for moral support, and after noticing one of the Broodals picking up Peach's crown, she finally decided to play her part and become Peach's wedding tiara, but the veil wasn't necessary yet. Peach was idly surprised that her fellow captive was following along, but at the same time couldn't blame her since there was literally nothing either of them could do until Mario arrived.
Bowser could only hope that for once he managed to get through to her, but she was so headstrong and stubborn that he couldn't be sure. In any case, all he could do for now was worry about planning for the wedding, and as soon as Mario got here, he'd knock him off the ship for sure and let the Broodals stall for time.