John Mayer Trying To Hook Up With Jennifer Lawrence

John only had eyes for Jennifer at a recent outing at the themed dinner joint Medieval Times, and Jennifer was loving the attention. A source tells RadarOnline John was eyeing up Jennifer like he was a dog and she was a juicy pork chop! When he lays on the charm he lays it on real thick!Jen kept giggling and covering her mouth. It was cute. But John should be careful, Jen has a serious boyfriend of two years.