I was convinced back then in my teens that nobody jerked off as much as I did. Once I learned how to do it I was a madman. Three, four, even a personal best seven times in one day. In the 70’s there wasn’t the internet and porn mags were not easy to get. Basically, jerk-off material was hard to find. Believe me, I jacked off to anything even remotely arousing. Thank goodness for the Sears catalog women’s underwear section...