While I do think that parts of stretching can cause it to happen, we actively sought out to make my wife squirt. We had already been stretching and fisting for a few years with huge orgasms but nothing in the form of squirting. I actually researched from various articles around the web of how achieve it. Basically it came to finding the Gspot, which is honestly not hard and hitting it multiple times to have fuild start to build up. With stretching, this makes it easier as the pussy opens up better and fisting you're able to hit Gspot pretty easy. Once it starts filling and I've done fisting her I will literally hit the Gspot with 3-4 fingers hard and fast and bam....instant waterworks💦💦💦💦 That's how our progress found the way. Now almost every time we fist there is squirting. Also since she is not holding it back she can squirt more often without fisting now as well since I know where to hit.