@Background Pony #EFAD
It isn’t the amount that’s the problem.
Dana and Crimson don’t have Changeling magic. Anything making them look like another race was simply an illusion- it wasn’t real, unlike a Changeling’s disguise. So Crimson’s egg cells would’ve been pony, and Dave’s sperm would’ve been pony sperm…
Unless alteration magic was used, but that’s more advanced than illusion magic, something Dave likely would not know. It also doesn’t feel like it’d be that simple.