Sinitta has joked she'll "corrupt" Simon Cowell's son.
The pair dated in the '80s but have remained close friends ever since the split.
Simon welcomed his first child, baby boy Eric, with girlfriend Lauren Silverman in February, but Sinitta has quipped she won't be a good influence on the little one.
"I'm not going to give him tips," she laughed to British magazine OK! when asked if she would give Simon advice on juggling his career and parenthood.
"I'm going to help corrupt Eric the way Simon's helped corrupt my children!"
Simon, 54, and 45-year-old Sinitta are so close she was even named godmother to Eric. She revealed a little about how the four-month-old's personality is already shining through.
"He's beautiful, adorable! His eyes are open and they're still blue at the moment," she gushed.
"He's definitely a watcher. He sits and watches everything and takes it all in, like his father. He's a gorgeous child; he's really easy and sweet."
TV mogul Simon recently revealed he is returning to the judging panel of The X Factor UK for this season. It might seem he's bitten off more than he can chew, but his friend thinks he's got it all under control.
"I think Simon is in his element, because he basically has it all," she smiled. "I used to say, 'You can't have it all,' and actually, he can."
The 11th season of The X Factor UK will kick off later this year, with Cheryl Cole, Mel B and Louis Walsh also acting as judges.
