Jennifer Lopez proved once ore that age is a matter of the mind. The sexy 46-year old singer attended a pool party in Las Vegas organised by luxury hotel ‘The Cromwell Las Vegas Hotel & Casino’ accompanied by her younger partner Casper Smart. The Latina star, who was the guest of honour, wore a summer outfit with a hot pair of shorts and proved she is as fit and as sexy as ever. Jenny could be seen dancing non-stop and really getting into the party atmosphere.