I'm not sure if there is specifically a 'bowser x luigi mpreg fanfiction' available. Fanfiction can cover a vast range of themes and pairings, but this particular one might be a bit of a niche or unusual concept. You could try searching on some major fanfiction websites like Archive of Our Own or FanFiction.net to see if it exists.
Well, I don't have direct knowledge of a 'bowser x luigi mpreg fanfiction' being out there. However, the world of fanfiction is huge and diverse. Some fanfic writers love to explore unique and unexpected pairings and concepts. If you're really interested in finding it, you could also join some Mario - related fan communities or forums and ask around. Maybe someone there has come across such a story or could even point you to where to find it.
Chapter 532, "Little Lolita Beats Up Jungle Python?!", is the clearest early answer because it turns Zhou Xu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Outside the cave, the four people grasped their weapons tightly and...
Chapter 817, "Killed by Me", is the clearest early answer because the violence around Jiang Li becomes final instead of hypothetical. Early on, Jiang Buchen leaned against Meng Wanzhi's chest and thoughtfully.... By the end, Her brother had always been unwell since birth, so her parents....
Chapter 430, "I Quit", is the clearest early answer because it turns Zheng Xun's situation into a concrete plot event. The setup is Hey, do we join a team that's short on members, or do we form our..., but the pressure keeps building through I want to join Team A and follow Ji Yanbai..
Chapter 623, "Turned into a Little Crybaby", is the clearest early answer because it turns Sister's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Cheng woke up again, this time realizing he was being carried...
Chapter 438, "The Upper Stream is Mine, The Lower Stream is Yours", is the clearest early answer because it turns Shu Yue's situation into a concrete plot event. It opens with I'm sorry," Shang Shuyue squeezed out three words through clenched...
Chapter 602, "Did Our Ship Capsize Too?!", is the clearest early answer because it turns Shi Xu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Hmph." Jiang Zhao Yuan grunted again, "Has anyone been bullying you?"...
Chapter 652, "He's Gu Shengrong's Grandson?!", is the clearest early answer because it turns Gu Shengrong's situation into a concrete plot event. The chapter turns that into something concrete by moving from The propellers lifted off again, and Team Q was already on their way...
Chapter 650, "Trouble on the Island?", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Pei Ye instinctively shielded everyone behind him.
Chapter 270, "Heavenly God Jiang Yu Returns?!", is the clearest early answer because it pushes Yu God into a new phase or setting. Early on, After liking the post, Jiang Mingyu put his phone away and turned.... By the end, A moment later, he stood up, his expression returning to cold calm..
Chapter 633, "It's Time for Us to Attack!", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter turns that into something concrete by moving from Jiang Li also sat down beside him, then gently sniffed the fragrance...