Actors Antonio Banderas and
are reportedly growing close to one another.
The 53-year-old actor, who split from wife Melanie Griffith earlier this month after 18 years of marriage, and his old friend are said to be taking a "very relaxed" approach to any potential romance, but friends say there is a definite "spark" between them, reports contactmusic.com.
"Antonio and Sharon have been great friends for years. They have always flirted outrageously and now they're closer than ever," said a source.
Read: Melanie Griffith, Antonio Banderas end marriage of 18 years
"It's all very relaxed at the moment and they want to keep it quiet out of respect for Melanie, but there's no denying the spark is there," the source added.
Banderas and Stone are said to even be planning a holiday next month.
"Antonio and Sharon are making plans for a getaway together in July. They've both been married twice before and are just enjoying having fun," said the source.