Ness says acab.
there's only 1 boo house, it just happens to be everywhere
yeah i have the same headcanon!! but it seems to be common either way. i think kamek adoped bowser too and its kinda sweet. wheres the real parents? Who Knows!!The Koopalings are still Bowser's children. The thing is, they're adopted. Bowser Jr is Bowser's only BIOLOGICAL child. Bowser tries to keep this under wraps because he still wants people to think of him as an evildoer
Bowser is just their boss, and there is no sibling relationship between them and Bowser Jr!"Easy, Roy. That's the boss's kid." -Ludwig, Bowser Jr's Journey
Eh, to play devil's advocate, most other official material is neutral or suggests both IIRC. I honestly feel like there's no harm in picking and choosing what you like most. In fact, I even feel like that aspect of the series is intentional to an extent. It's not like the plot of Mario is all that intricate anyways. I personally just ignore what M & L implies about their relationship.As a kid, I was a firm believer that the Koopalings were Bowser's adopted kids. I always thought it would be really nice of Bowser to soften up and take in a bunch of orphans and raise them as his own. I still think it would've been a good storyline, but I really don't think that they are his kids in any fashion anymore. They're minions and minions only (although they are among the highest-ranking). Dialogue from recent games, particularly the latest Mario and Luigi games, suggests that there is no parent-child relationship between Bowser and the Koopalings whatsoever. They refer to him as "Lord Bowser" or "Boss" formally, or simply "Bowser" if they're talking casually amongst themselves. This line really sells it:
Bowser is just their boss, and there is no sibling relationship between them and Bowser Jr!
Even when Bowser addresses them in recent games, he always addresses them as a group, as if they were just a squad of minions. Additionally, he always has the same commanding tone he uses when speaking to all his other minions. He completely lacks any of the softness he has when talking to Jr
(unless, of course, he's talking to them about Jr).
Technically speaking, we've never seen any written Koopaling dialogue in the main series since before Sunshine. If ever. So there is a little bit of wiggle room if you want to argue against the canonicity of the M&L series. However, given all the other juicy lore that can be found in that series, it would be a detriment to the Marioverse to consider it non-canon.
As much as I'd like to believe it, I just can't anymore. The facts don't lie.
Yeah, Mario games are on a sort of a "Floating Timeline", where there's no real order in which the games come in (except when it's explicitly stated, Like in Mario & Luigi or the Luigi's Mansion games)(I do greatly agree it would be detrimental and pointless to consider Mario & Luigi (as well as most of the other non-mainline games, TBH), non-canon, especially since there's really nothing to suggest they are.
Yeah, now that you mention it, it wouldn't make sense in the family-friendly way for Bowser to continue to kidnap Peach, if he were a real dad...I'm sure the retcon for the Koopalings roots, at lest in part, in how them and Bowser Jr. being Bowser's biologcial children just wouldn't be family-friendly enough according to their owners. When you take Bowser having 8 really different looking children combined with him obviously having a romantic interest in Peach, it's not hard to get the impression of harems and concubines (since Bowser has never been shown with a wife).