I can answer a lot of questions regarding male and female genital sizes. I can answer if your penis size is normal for your age; tightness/looseness of the vagina and ways to to fix them. Any questions about abnormalities about your penis or vagina. A lot of the time, genital size is a psychological problem, and people tend to think what they see in adult films is what everyone should be. That is really not the case. A little self-esteem boost is really all one needs.
I wouldn't say I have a lot of experience with penis's since I am female, but I do know the statistics of penis size, the normal size for certain ages, the abnormalities of the penis, due to extensive research. Being female though, I do know about the vagina and any problems related to it, including statistics and such.
I have a certificate as a Woman's Health Practitioner and a BA is Psychology from John Hopkins University.