Portman's son Aleph keeps watch during a stroll through L.A. Plus: Tina Fey, Heidi Klum & Tim Gunn, Jennifer Love Hewitt, Ryan Kwanten and more

SUMMER LOVIN'

Too cute! Alessandra Ambrósio and fiancé Jamie Mazur share a sweet snuggle Wednesday while vacationing in Mykonos, Greece.



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