Scarlett Johansson and Sean Penn reportedly enjoyed a whirlwind trip to Mexico earlier this week, jetting to Cabo San Lucas by private jet for a lobster dinner Tuesday night and returning to Los Angeles Wednesday, according to People magazine. The pair were also spotted sharing an intimate lunch at a Cuban restaurant in L.A., with Johansson resting her leg in Penn’s lap, according to sources. Johansson’s rep has previously denied the pair are dating.