Can we get real?  A hand on the thigh is not groping.  People lay hands on others all the time.  It's generally accepted, so long as they don't the privates.  And with what would this guy be charged?  An unprovable claim, at best.  So does this girl's mom expect the guy to have a record and have to register as a sex offender?  Charge him with smarminess, at best.