Your guy lies on his back, one leg outstretched and the other bent, knee pointing upward.
让你的男伴躺下，一条腿伸向一旁，另一条腿弯曲，膝盖朝上。
2
Maintain some weight toward the ball of your front foot and use your front thigh to pull your thighbone upward out of your front knee, allowing your front shin some slight forward movement.