Not sure if this relates, but a year or two ago, anytime I was doing the wife in the missionary postion, just as I came I would tense up all over & there would be a blinding headache at the base of my skull...it only happened a few times & eventually stopped happening, so I didn't worry about it too much, but it was a major buzzkill at the time, knowing I was gonna experience the heighth of pleasure AND pain at the same moment, at different ends of the body...

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