Ironflower Fitness's women-only Abs, Butt & A Little Extra class hones in on the often troublesome tummy and tush duo, emphasizing dynamic movements. Those looking to get a little more flirty with their workout can also try the "Booty Bounce" class, which fuses muscle building moves like lunges and leg raises with high-energy dance moves. After this killer combo, there may be some Sir Mix-a-Lot lyrics in your future. Abs & Butt and Booty Bounce are available at Ironflower's MiMo and South Miami locations at $25 per class or $129 per month. [Photo]

For buns like a ballerina, sign up for a “Wholy Barre Butt” routine at Barre Elements. This hour-long class uses a series of yoga postures to target the legs and repetitive ballet positions to go after the glutes. The session also utilizes martial arts movements to up heart rates and wake up the entire lower body. An unlimited Barre Elements day pass is $25; an unlimited monthly membership is $150.

Barry’s Bootcamp’s hour-long classes are split into two portions: half of the time is spent completing cardio intervals on the treadmill while the other half focuses on strength training using free weights, medicine balls and resistance bands. On Tuesday’s, Barry’s put its focus on the butt and legs; the incline is upped on the treadmill and the floor routine sequences go heavy (wa-ay heavy) on the squats. A single class is $30. Weekly memberships begin at $145, followed by monthly memberships for $400.

For those who love to shake what their mommas gave them (while also gaining a sculpting boos)t, head over to the Vixen Workout's lower body session at Body & Soul. Vixen's hip-hop cardio dancing format still reigns supreme, but the routine adds beats-driven plyometrics, lunges, and sumo squats for some extra booty burn. The Vixen Workout is $15 per class, $120 for a ten class package, or $110 for an unlimited monthly membership. [Photo: Driely S. for Racked]

Model Nicole Mejia founded Fit & Thick in 2013 after an Instagram post she sent out went viral: The post responded to people inquiring about how she maintained her naturally curvy figure, emphasizing that fitness and "thickness" are not mutually exclusive. Now the Miami-based Mejia hosts classes across the country, encouraging women to accept their bodies while meeting their body's potential. Naturally, Mejia created a "Butt & Legs" class aimed at building lower body curves. The circuit-style course changes weekly and is offered at All Time Fit and SoMi Fitness. A single class is $20, followed by five class bundles for $90, and then ten classes for $150. Unlimited classes begin at $150 a month.

Fancy fresh air while working that derriere? Fit Body Miami takes its muscle-ripping routines to Edgewater’s Margaret Pace Park. Tuesdays and Thursdays are all about the Abs and Booty Blast. At just 30 minutes long, this waterside workout is perfect for those short on time or looking to get a quick but effective fitness fix outside after a day at the office. Class drop-ins are $15, or you could go into it full force by purchasing the 30 class package for $150.

Downtown Miamians can get their rear in shape and work on washboard abs at David Barton Gym. Barton’s motto is “Look Better Naked” and its "Ass, Arms, & Abs" class takes the phrase to heart. This interval class is one of its signatures and incorporates plyometrics and weights into the format. David Barton hosts day passers for $25, however unlimited memberships begin at $75 a month. [Photo]