I know the waiting game is part of breeding programs, but to perhaps lessen the pain of more difficult endeavors (like, I don't know, three sets of passives), maybe there could be a small chance in breeding to spawn a second egg? I don't know if that would work with the code, but I think it would diminish some of the anguish of the three day wait knowing that, at least sometimes, you had twice the chance to succeed in getting what you want. <3

Well maybe it's something that could be unlocked somewhere,
bought with golds or something in the Referal "upgrades"?~ owo

Well that's how I see it, I would love certain pets to have 2 Eggies
and at other times, it'll be troublesome because I don't want ALL
pets to get 2 babies~ XD

Maybe something like breeding add-ons that can be crafted then used at the time of breeding. Things like stuff that makes a higher chance of getting twins, or even things that allow a gene to be more likely to be passed on if carried. OR even something like a genetic mutator you use at conception to add a random gene or color swatch to the mix... that would be fun.

I LOVE your idea about this~ <333