Corey and Eric Maison are believed to have become the world's first transgender father and daughter.
The pair, from Detroit, Michigan, had known that they weren't comfortable in the bodies they were born in for years but neither could have known what would happen once one of them came out.
The first to do so was Corey who realised she was a girl when she reached the age of 11.
She was initially scared of telling her parents but her mother Erica was very supportive of her decision and even gave her her first box of oestrogen.
Three years later, inspired by his daughter's successful transition, Erica revealed to her family that he was a man, and would be called Eric.
Eric first revealed his secret to husband Les and although he admits it was difficult at first, his partner was supportive throughout the entire process.
Speaking to the Mirror, Eric said:
It was an awful secret to keep from my family.
My loved ones were awesome, almost like nothing really changed. My husband has been supportive through everything.
Our relationship is actually stronger and better than it ever has been in the 10 years we've been together.
After a year of testosterone therapy and then a double mastectomy in early 2017, Eric has now admitted that he "finally feels complete for the first time in my life."
Corey equally felt the love and support of her family when she first began to transition as nobody made a big deal of it.
They didn't really react since I'm still who I've always been.
The only thing that was different was that I started wearing girls' clothes outside of the house.
I finally felt free once my family knew.
Unlike her father, Corey is yet to have surgery as she has to wait until she is 18 before she can go under the knife.
I am so happy that my story inspires people and is saving lives.
I want to tell anyone out there who is trans to find someone you can talk to.
Find someone who wont judge you that you can go to if you need a friend.
Eric shared a similar sentiment:
My message would be to never, ever be ashamed of who you are, and never let anyone else's view of you make you think you are less than you are.
Always be proud of who you are.