Blake Lively and Leighton Meester had some fun with ice cream for their saucy cover of Rolling Stone. In the issue the rest of the cast got in on the action, which included a big pillow fight and the standard posing between the sheets. Blake talked a little about all the candy and kiddie-themed props they worked with on set, saying, "They didn’t tell us anything about the concept. We didn’t know we'd have any props, but we saw this big fun table — like a kid's birthday party. Um, some of it was a little mature for a kid's birthday party. Some of the ... inflatable items. But it's all been a surprise; it's been really fun." Blake and the rest of the crew spend plenty of time playing precocious teenagers, but it sounds like they enjoyed an opportunity to let out their younger sides too.