Brazil’s reigning Miss BumBum has told how she made her boyfriend sign a kinky contract to have sex with her at least five times a week, and they can only talk to each other in silly baby voices and nobody else.

Curvy Larissa Sumpani drew up the dating document to make sure boyfriend Victor Prado keeps up his interest in their relationship.

One of the other stiff clauses is that Prado is forbidden from losing his erection while they are making love.

Larissa, 24, and Victor both create pornographic videos with other partners on the adult platform OnlyFans.

So they signed the sex contract to make sure that, no matter what they have been up to in their day jobs, they always have time for each other.

She said: “It wasn’t exactly a proposal, it was an item we mutually agreed upon.”

Larissa, who has nearly 500,000 Instagram followers, explained: “We have a clause in our contract that prohibits either of us from using a baby voice or an overly cute voice when we’re recording adult content with other people.

“After all, doing baby voices together is much more intimate than sex.”

Larissa had been married for six months before beginning to date Victor.

She announced in October 2023 that the marriage was over because he could not accept that she was bisexual.

Larissa said: “He never accepted it very well.”