"Magic Mike XXL" co-stars Amber Heard and Channing Tatum have allegedly been flirting on set and fueling rumors that the two are cheating on their significant others, actor Johnny Depp and actress Jenna Dewan Tatum, the Hollywood Life reports.

HL claims that Heard and Tatum had instant chemistry from the start of filming for "Magic Mike," and since then, the two have been heavily flirting with each other.

"They were noticeably flirty. ... Everybody saw it," an OK! source said. 

Tatum's wife, Jenna Dewan, caught wind of the rumored flirting between Heard and her husband and allegedly visited the "Magic Mike" set to see for herself what was going on.

On arrival, Dewan allegedly noticed the flirting between Tatum and Heard and now brings her and Tatum's 1-year-old daughter, Everleigh, to the set to keep Tatum focused on family.

"You could feel the tension when Jenna visited the set," an OK! source said.

So far, Tatum has not spoken out about the rumored flirting on set.

However, Heard did recently recently respond to the rumors in her own non-verbal way.

People reports that Heard and Depp recently went out on date night in LA. The two dined at Hollywood's cocktail bar, The Library, to support the album release of music group, The New Basement Tapes.

"Amber and Johnny were next to each other all night and seemed very lovey dovey," a People source said. "Johnny was talking to the guests and being very approachable."

In addition to enjoying a nice date night out in Hollywood, Depp also gifted Heard with a lavish Ferrari rumored to cost over $450,000, reported the Daily Star.

"Amber wanted the sexiest car available and she's over the moon with her new motor. Johnny's so generous and is always treating her," a Daily Star source said.