I've noticed that if I concentrate solely on massaging this area I get an overwhelming feeling of tension building in my penis and body till I completely lose control and start jerking about and thrusting and I have to grab my penis and twist it hard to releave some of this tension!
The lady I am seeing does this to me all the time and I didn't think this kind of reaction would be possible because I am not stimulating any part of the penis or the prostate?
The perineum is a highly sensitive area for both men and women...it does wonders being stroked or licked for men. If she is on top of you have her reach back and lightly stroke the area, or if she is giving you a BJ, ask her to give that area a bit of oral action, I found it drives men crazy...