When you both climax at the same time and it is so intense that you're both causing the other to twitch or spasm from the other. Every time one clenches down there it cause the partner to twitch in return making the fist person to twitch more. Causing a circle of twitching orgasmic pleasure while both being super sensitive from cumming.
Mary and I came so hard it sent us into a twitchgasm for a few minutes until we gained control and were able to stop moving.
by Thescreenguy May 27, 2024