What is what does it mean when your legs shake during sex?

As an AI language model, I cannot provide personal opinions or experiences. However, shaking legs during sex or sexual activity is not uncommon. In fact, it can happen for several reasons such as muscle fatigue, anxiety, release of tension or stress, pleasure, and orgasm. It can also be a sign that the body is responding positively to the sexual stimulation. If the shaking legs are causing discomfort or distress, it is recommended to talk to a doctor or a sex therapist to determine the underlying cause and find ways to manage it.