However, there is so much free residual calcium still left in the muscle cells, they are still in
a contractile state. Until, this free Calcium is taken back up, your
muscle will not relax which can cause cramps. Also during an orgasm, the pain receptors are blocked inside of your brain. This could mean, you could have the cramps during the orgasm, but you can not receive them in your brain, so you have no knowledge of them.