Zac Efron and Michelle Rodriguez color-coordinated in black as they reunited on a luxury yacht in Ibiza, Spain, on Thursday, July 31 Credit: VEM/FAMEFLYNET

The night is young! Zac Efron and Michelle Rodriguez reunited on a luxury yacht in Ibiza, Spain, on Thursday, July 31.

The pair color-coordinated in black and were joined by a few other friends during the late evening, including movie producer Mohammed Al Turki. The Neighbors actor, 26, wore a black T-shirt, while makeup-free Rodriquez, 36, donned a black leather jacket and matching hat.

Efron and the Fast & Furious 7 actress have kept mum about their rumored romance since they were first photographed locking lips in Italy on July 5. They were joined at the time by pal Gianluca Vacchi and were spotted laughing and cuddling on a boat. They have "great chemistry," an insider previously told Us.

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The twosome later had a sleepover at Rodriguez's home on Saturday, July 19. Efron was spotted leaving her residence Sunday morning with an overnight bag and a skateboard under his arm.

Ibiza, Efron and Rodriguez's latest meeting ground, has been flooded with several other celebrities in the past week or so. As previously reported, the Mediterranean island is where Orlando Bloom (with pal Leonardo DiCaprio by his side) confronted Justin Bieber at hotspot Cipriani.