"Caitlyn wants to make sure that Sophia is well taken care of in the event that something happens to her," a source exclusively told RadarOnline.com.
According to the source, Jenner has decided Hutchins would get the house and the dogs as well as "a nice chunk of change" and ownership of her ventures if she passes away.
"Caitlyn is reaching 70 and she knows that she is at the age where things can go wrong," explained the source. "She added her to the will because she wants her to be set for life."
Another reason the reality star is willing to pass along her fortune is because she's thankful Hutchins, 22, has changed her life for the better.
"Sophia has given Caitlyn the best gift ever, which is happiness and teaching her how to be a strong and proud trans woman," said the source.
But, added the source, the couple's relationship is about way more than just money: "Caitlyn is madly in love with Sophia and Sophia feels very strongly for Caitlyn, too."
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