Hybrid

There used to be a time when half human half alien kids were a thing but these were just the result of a rogue plumber faction using mind control and an osmosian to instigate it. Only those that were close enough in physiology could have kids.

But times have changed and thanks to a recent breakthrough, couples from incompatible species are able to have genetic children. The same technology that allows two transformations to fuse can be used to create new life. Plumber HQ offers that for minimal expenses, most is covered by a simple donation of DNA into the sifter DNA pool, the reason why it is so large.