Yes, dear you should. You will read about it in running magazines and wonder, what are they talking about? Why should I buy a “Vaseline” box for lubrication ?
If you have a high BMI or when you start to increase your mileage you will definitely need one. You will start to feel burning sensation in areas where frictions is at most and you might get some foot blisters as well. It’s different from person to person and from foot to foot, I usually get in my right foot, probably because its larger than the left so its fits the shoe in a more or less tight way.
So, when you feel the burn, next time know the areas that hurt most and lubricate before you go for the run, it’s going to hit you in the perineum, feet and the nipples, yes you read it right, its nipples, and god know where else. Enjoy the ride.