Do the math this Tushday as you ponder these bumpers from Harder magazine issue #4 (used with permission). You can get Harder at Facebook or Twitter, and see our complete hoard o’ humps by clicking here.

Gluteus Formosus

ModelTeenz Ryan K
Ryan K reaches unsuccessfully for his wallet in this week’s Tushday observance, from his final ModelTeenz photo set (SE 379).