The singer appeared as a guest on Real Radio and complained about the ongoing World Cup in South Africa, which distracted her partner during their brief time together last week.
But Perry soon began discussing oral sex on air - shocking listeners with her racy language.
The other day (Russell) did this little play on words and ended up saying that he loved the World Cup more than me. But I know that's not the case," the Daily Express quoted her as telling the host.
She added: "The World Cup does not give b**wjobs. That's one thing I win."
