The single life looks good on Malin Akerman!  The actress was spotted soaking up the sun with her sister Jennifer Akerman and her celeb pals, including "Entourage" hottie Emmanuelle Chriqui and "The Best of Me" star Michelle Monaghan, on Sunday.  Akerman's sis took to Instagram to share a few of the fun photos, which also showcased each of the ladies' insane bikini bods.  "Monday recovery after yesterday's amazing day with these babes @echriqui @therealmalinakerman @realmonaghan @nicolpaone," Jennifer captioned the sexy shot.  In a second photo posted to Malin's Instagram account, the actress added her adorable baby boy to the mix.  "Who feels sorry for this birthday boy...?! #thuglife #sebbysunday #sebbyhasaposse #yourewelcomeson @realmonaghan @jjakerman @nicolpaone @echriqui," the "Rock of Ages" star captioned the cute candid.  It definitely looks like the blonde beauty's son, Sebastian Zincone, doesn't mind being surrounded by some beautiful babes!  The actress welcomed her little guy in April of 2013 with ex-husband Robert Zincone.