Shannon Twins Celebrate 21st Birthday at Sugar Factory

Continuing along with her weekend birthday, Karissa and Kristina Shannon were observed living it up in Las Vegas on the afternoon of Oct. 2. Also be presented with a cake, tweeted Kristina stop, "The Sugar Factory! Thanx for all the candy and cake! LUV" has just been 21-year-old Playboy beauties fell by sugar factory to load up on candy for a boost of energy. As previously reported by gossip center, kicked Shannon twins out of her birthday celebration in NYC on Friday night with a booze-fueled bash at the Green House nightclub after dinner at Via De Mille restaurant.