Are these the closest sisters in the world?
Candace-Brooke and Candace-Baylee, who go by the names Brooke and Baylee, have such a tight bond that they sleep in bed together.
They also share the same toothbrushes, underwear and have a communal razor for shaving their legs.
On TLC show Extreme Sisters, Brooke said: “We share razors, sometimes a toothbrush, underwear – but who doesn’t? What sister doesn’t share underwear?
“(Growing up) we shared the same room, we were always together and we always slept in the same bed.”
And it seems the habits have been hard to shake – as Baylee admitted: “We’re still doing that”.
Baylee clambers into bed with Brooke and her husband, which has understandably started causing tension in the marriage.
The disgruntled hubby admitted his sister-in-law’s “welcome has been overstayed”.
This upsets Brooke, who feels torn between her two loved ones.
On the show, she sobbed: “I don’t want to have to choose between my husband and my little sister.”
To watch the show, tune into TLC on Sunday, April 25.
The programme also features identical twin sisters Brittany and Briana Deane who are married to identical twin brothers Josh and Jeremy Salyers.
And the “world’s most identical twins” are also making an appearance.
Anna and Lucy DeCinque, 34, are so close they’ve been sharing their boyfriend Ben for eight years.
They explained: “Sharing a boyfriend for us means we get to be together all the time.
“There is no jealousy in this relationship. Like, if Ben kisses Anna he kisses me straight after.”
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Howard Lee, president of TLC, added: “Having a close knit family is something most people aspire to and at TLC, we love to explore relationships of all kinds.
“In Extreme Sisters, we will introduce sets of inseparable sisters whose bonds are raw, honest, and perhaps a little unconventional.
“Their sibling kinship brings the meaning of sisterhood to a whole other level.”