Not only is it not necessary. It makes sex less enjoyable More lube, less friction and with vaginal sex, you dont get see when the girl starts to get wet from enjoying the sex. In his earlier vids you would see a chick orgasm as her pussy starts to get creamy. To me, that was the hottest part of his videos.. cause you would see a genuine physical reaction that wasn't faked. Now, that is all drowned out by tons of pointless lube.