Muscle contractions.: The physiology of orgasm involves strong muscular contractions, followed by relaxation and release. Many people tense their bodies in anticipation of orgasm. Curling your toes is muscular contraction of the foot and calf muscles, so they are related to your body's response to arousal, pleasure and orgasm. It's OK to enjoy the process without getting too technical about it!
Answered 2/2/2016
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