Her sister Kim Kardashian also faced a similar lawsuit in 2021.
The model welcomed Theo in December 2021 after a scandalous pregnancy.
Although the couple is welcoming a child, they are not back together and have not spoken since December other than co-parenting matters.
Tristan Thompson did acknowledge being intimate with Nichols at a hotel several times after attending a party back in March.
Although their relationship is on-again, off-again, they had been debating using a surrogate to welcome a second child.
Khloé Kardashian and Tristan Thompson reportedly decided to try again during Kardashian’s 36th birthday party last weekend.