"She and Austin are solid, but letting Zac back in her world would be playing with fire — he was her first big love," the source claimed.
Indeed, Disney fans would be happy to see their favourite HSM pair reunite in real life but considering Hudgens's "animosity" towards Efron, "Zanessa" seems to be a far-fetched dream.
Not long back, there was news that Baywatch star Zac Efron had reportedly split from his model girlfriend Sami Miro citing work and long-distance reasons.
Now, it seems the 28-year-old actor doesn't want to be all that lonely after all.
The Dirty Grandpa actor recently became single after breaking up with girlfriend Miro and is currently shooting for the movie remake of popular show Baywatch.
If rumours are to be believed, the High School Musical actor has been making secret calls to his HSM co-star and former girlfriend Vanessa Hudgens, much to the dismay of Austin Butler, her current boyfriend.
According to a report in Hollywood Life, Efron has been making "sappy phone calls" to his ex girlfriend.