Back in the eighties i dated a 60 year old who was famous both in LA and New York for the size of his cock. He was uncut with a huge foreskin and a true 10 inches when hard. Well into his sixies he could stay rock hard for hours and was an amazing top.
Still see a guy here in LA, who 30 years ago had the BEST body in town and pecs that i still haven't ween rivaled. He's well into his 70's now and his cock is still a perfect fat 8". He's just plain a stud, no matter his age.
And his body still looks great, totally hot man.