Yup yup ! J.J is one the thickest, densest bb'ers I've ever seen this side of the mississippi. So many people are quick to bring up Arnold, Markus, Haney, etc. when it comes to great pecs throughout bb'ing history. I'm always like, " WTF

What about J. Jackson ??!! ".
It just goes to show what's been said since the beginning of time ...
you lift heavy ass weights, and you build thick, dense muscle. Here's a prime example of that.