I worried about the same thing actually. so I just put all 4 bottles on top of my desk for all to see since its not illegal drugs, and dose it right there ;) and yea... after answering all of their questions we have 2 more guys hitting the gym now. go figure.
my wife and I both do kegels. it definitely tightens her vagina, and enhances erections for men. here's a decent article that explains a little about the vagina's elasticity and what happens during and after childbirth.