公式：大きなグルートトレーニングチュートリアルビデオ

• 00:02
• 00:15
• 00:27
• 00:40
• 00:52
• 01:05
• 01:18
• 01:30
• 01:43
• 01:55

Working out in a thong is very important to allow your personal trainer to watch your buttocks as you exercise. If you are working in a public gym, be prepared for strangers to pinch your bottom.