'A behind the scenes exclusive look with Forbes Riley with male fitness models Dustin and Justin.  The SpinGym helps to tighten and tone your upper body in just minutes - and you can see their muscles fire!  http://buyspingym.com' 

Tags: fitness , Workout , abs , sexy , exercise , loss , muscle , weightloss , male models , SpinGym , Forbes Riley

SEE ALSO: easy to follow , par , cha , women s workout , neil , bauchmuskeltraining , Kareena Kapoor yoga , build muscle , 30 , tir