Holy crap! He's still alive?
Yep - he has credited his youthful vigor and vitality to having lots of sex with hot young women (and those are pretty much his words).
He has been known to hit the strip, in a tux and satin white scarf, with hot babes who could just as well be his grandaughter, and just mills about 'being' Tony Curtis and enjoying the attention.
I suspect he enjoys the sex with goodlooking 25 year old women, too. "If you are among the very young at heart!" ;-)