Jack HammerXL is the former director of HardTied.com with the company once known as Insex.com. He served in the Marines for eight years and is also an avid practitioner of Brazilian jiu-jitsu and was at one time a cage fighter. After finding out about BDSM in the late 1990s, he played in private for some time before starting to work in BDSM porn for Kink.com in early 2008. During that time he acted in many shoots as a submissive and later as a dominant male figure. You can see his work at InterracialBondage.xxx, JackHammer.xxx or on Kink.com.
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