!! OMG, his butt: Mark-Paul Gosselaar !!
Oh Zack Morris, my how you've grown. We've long known that Mark-Paul Gosselaar turned from lanky child star into a bona fide adult actor (mostly still on TV), but who knew he was packing so much ass?! After the jump, see uncensored shots of Gosselaar rump from his new TNT series Franklin & Bash. Yum.
Click to enlarge.
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