I hadn’t ejaculated in several days even though I had masturbated, with edging only, on most of them. As a result, I was pretty charged and ready for an intense session. After only a few anal contractions, my body was contracting like crazy. After a while when it stopped, I experienced my usual waves of full body tingling. However, this time my eyelids started blinking rapidly on their own. It was weird. That's the first time that's happened.
Buster had mentioned in an earlier post that this had happened to him (he said his eyes twitched). Very odd that the day I read about that, I experienced it myself.