Comprehensive review of the state of affairs at New Scientist. Surprisingly, the biological mechanism and the reason (or lack of it) for this is still not well known. My last conversation about this was about 12 years ago with a medical student friend of mine in college who obsessed over female ejaculation (he went on to win the top rank at his university, so, I guess it was a healthy obsession). Nothing much has been added to our understanding in all these years, it seems. Is this the female equivalent of moobs (man-boobs)?