DJ Ruckus & Shanina Shaik: Hard and Creamy

DJ Ruckus is twice the winner in Miami ... showing off his sculpted bod with his Victoria's Secret model/fiancee by his side.

Ruckus and Shanina Shaik were spotted in Miami Beach Wednesday where he worked out at the world famous 5th St. Gym before juicing up with his boo.

They looked serene ... probably cause they didn't bump into Tyson Beckford.