where dad used to be a mum

They are a transgender couple but still have their original sex organs because they cannot afford reconstructive surgery.
[дорого, у нас употребляецо термин: коррекция — есть куда подумать про розницу]

When Bianca and Nick Bowser’s young sons get older they will sit them down and drop a bombshell.

Bianca, the woman they have always known as their mother, is ­actually their dad.
Nick, the man they believe to be their father, is actually the mother who gave birth to them.

дополнительно:

• читать цели ком
• краткий русский пересказ (баюсъ не всем буит видна — дайте знать, если чо)