H ave you ever wondered how a SI Swimsuit model keeps their abs runway-ready? Well, Olivia Dunne took to her Instagram ...

Olivia Dunne is stunning in her teeny leopard bikini as she shows off a gymnast stretch for 'Sports Illustrated Swim.' ...

Gymnast Olivia Dunne is stunning in her white bikini as she gets cheeky outdoors and is warned to be "careful." ...

Olivia Dunne, the former LSU gymnastics star, went viral after doing a split at the end of her turn on the Sports Illustrated Swimsuit runway in Miami this past weekend.

Lie on back with arms extended toward the ceiling in-line with shoulders and legs bent to 90 degrees (knees above hips). Pressing lower back into floor and engaging abs, slowly extend and lower right ...