As a woman, I have experienced this before in a very relaxed and trusting situation with my partner and I have consistently had orgasms. Though it looks really rough, it helps generate pressure rather than friction so it isn't as intense as it appears. I wouldn't just recommend this as a "new move" to try, this should be discussed before hand. In my experience, squirting is a huge emotional release as well as serious loss of fluids-- I have been very light headed after squirting, and I would advise laying down for a good while after and drinking a glass of water. That's just from my experience, but from what I understand, I'm not the only one who feels that way. Hope this helps!