The alternate ending to the "if only" scene from Tubb the Frog Prince

Wise Old Reg: You haven’t finished this one yet. The law of this kingdom says that whoever rescues the Princess must marry her.

Tubb: What the-? Have you lost your mind?? I’m a frog! She’s a whale! This is just creepy to marry a whale, and it’s insulting the laws of nature!

Reg: That’s the law, even if she’s a different species.

Tubb: That's fine by me.

Reg: Then you have to rule the kingdom.

Tubb: Okey-dokey.

Reg: This means you have to drain all the water out of the Splish Splash Swamp.

Tubb: What? It’s gigantic. Also, how’d we get water if there’s not any water in the swamp?

Reg: And you must cut down every tree in the Frightening Forest.

Tubb: What? No! There’s hundreds of them! Wow! Those trees have thrived in this forest for centuries! Let them grow! Being a prince is not all easy.

Reg: That’s the law.

Tubb: Fine.

(Tubb and Winona kiss on the lips.)

Tubb: You wanna hang out at my place, Princess?

Winona: Squeak squeak! (Oh yes!)

(Nine months have passed after Tubb and Winona's wedding, and Winona is about to give birth to a baby.)

Reg: Come on, Princess! One more push!

(Winona gives birth, and we see a newborn tadphale (tadpole-whale).)

Reg: Congratulations! The baby has arrived! It’s a… frog… with a whale tail and a blowhole. Tubb, can you hold the baby? I wanna forget about this cringey baby. I’m running away and never coming back here!

(Reg jumps out of the window and runs away. The tadphale squirts water from its blowhole. Tubb looks closely at the baby tadphale, cringes, and realizes that he created a mutant.)

Tubb: Oh no! What have I done? Reg was right! It is a cringey baby! I created a mutant! I should have known that it was a bad idea for different species to mate. Oh, if only I could go back to the easy life of being plain old Tubb the Frog.