Tyga is reportedly planning to propose to Kylie Jenner without a prenuptial agreement once she turns 18 in August.

HollywoodLife recently reported the California emcee met up with Caitlyn Jenner to deny cheating with transgender model Mia Isabella and explain that "he intends to spend the rest of his life" with her daughter.

With that being said, Tyga supposedly wants to tie the knot with Kylie, who wants to protect her wealth first by signing a prenup.

"Kylie's comfortable living together and she'd even go the extra mile and marry him," an insider revealed to HollywoodLife. "But, Kylie's not stupid. She loves her that hard cold cash and while she does love Tyga, she loves the money more."

"She's promised her mother, her father and her sisters that she will protect her money and the empire the family has created if she were to get married," the insider continued.

The insider then claimed that the "Ayo" rapper had to disagree with the "Keeping Up with the Kardashians" star, telling her "this will be her first and only marriage" and she should put everything into it -- "including money."

However, Kylie reportedly did not give in and does not intend to change her mind at all, since "This is a promise that she's made not only to her family, but to herself and her future."

Meanwhile, Caitlyn supposedly does not like the idea of the 25-year-old moving into the 17-year-old's $2.7 million mansion that she purchased earlier this year.

According to the publication, the "I Am Cait" star is concerned about the age difference and told the "Rack City" hitmaker that it is too soon for him to be living at the teenager's house.