My friend has a 62 yr old wife who still wants to mount up as much as an 18 yr old. He says it's normal for them to mount up 3 - 4 times a week..He is 64 and has back issues..She is still a great looking woman ( no pics cause of pervs )...Says its wearing him out...Any non bullshitting advice? Told him I would go to source for some non biased answers..Sicko's please do not reply, this is for a friend.