Krista Keller, the 56-year-old mother of now 21-year-old child bride Courtney Stodden, alleges that her son-in-law once propositioned her with a three-way with the couple.

“He was asking me to stay with him and saying that he’s had fantasies of having both Courtney and me,” Keller revealed to Us Magazine.

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The X-rated admission came after Keller helped Hutchison and Stodden keep their marriage afloat during trying times.

Keller, who currently appears on “The Mother/Daughter Experiment: Celebrity Edition” with Stodden, claims her daughter turned to her three months after marrying the “Lost” actor, saying that she wanted out of the relationship.

“She goes, ‘He’s mean, he’s crabby, he’s old, he’s disgusting. And I want to be with people my own age’,” says Keller. ‘And this was a hard time for Doug, so Doug was reaching out to me because I was right next door, and I was there for him emotionally. You know, it looked like every time [there were issues with Courtney], Doug wanted to talk with me — I don’t know if Courtney much liked it, but I was there for him when she wasn’t.”

Keller admits that because of this, Hutchison may have developed an inappropriate attachment to his mother-in-law.

After he confessed his three-way fantasies, Keller told him to seek help elsewhere.

Keller has taken lie detector tests to prove that she has not fooled around with her daughter’s husband.

She says her daughter also accused her of trying to steal the spotlight from Stodden, which she denies, citing the fact that she turned down an offer to do pornography.

Click here to read more in the New York Post.