Efron allegedly made a late-night visit to the 43-year-old former Spice Girl's Los Angeles home after exchanging a series of flirty messages on the dating app. A source told The Sun that, "He ended up driving over to her pad. They hit it off and spent a few enjoyable hours together," shortly after Mel split from husband Stephen Belafonte.
"It wasn't exactly a meeting of the minds. Neither saw it as long-term but there was chemistry there. Mel thought Zac had an amazing body," added the insider.
Mel B currently remains in a heated custody battle with ex-husband Stephen. The star's ex-nanny Rusty Updegraff recently deemed her to be an unfit mother claiming she was neglecting her children due to drugs, drinking and sex addiction. He said she was "incapable" of caring for her children Madison and Angel and that her bed was seeing a slew of random men due to her appetite for sex.
The 59-year-old has claimed that he made the allegations out of genuine concern and not for fame saying to The Mirror, "I am not doing this for fame, and I didn't have to do this, but I love those children and want the best for them."
He also claimed that, "Mel would drink so much at the house and pass out that if there was an emergency I dread to think what would happen."