Playboy founder Hugh Hefner hosted his annual Midsummer Night’s Dream party Saturday night and RadarOnline.com has all the pictures from the super sexy summer fling.

With new girlfriends Anna Sophia Berglun and Shera Berchard on his arm, Hef invited Hollwood heavyweights to the Playboy Mansion for a night of debauchery.  

PHOTOS: Hugh Hefner’s Sexy Summer Fling

Captain America star Chris Evans partied with bad boy Jamie Kennedy, while Glee’s Mark Salling and Max Adler were on hand to watch the hundreds of gorgeous women dressed in their “favorite sleepwear and lingerie” party until the early hours of the morning.