Every week I take a private stretch class. It helps strengthen my weak back. You would be surprised how good I feel after that hour.
One of the things that she works with me on is not only strengthening my back, but also my vagina. I lie on my back with my knees bent and contract my vaginal muscle and then lift off the floor. First, I lift my buttock very low to the ground keeping my vagina contracted until I finish the lift, and then I release the contraction. I do this several times, each time raising myself a little higher, until I have literally lifted my lower body off the mat. I keep the contraction until the end of each exercise, and then release.
One of the topics that Dr. Greene emphasizes is teaching our bodies to readjust the vaginal muscle which occurs during childbirth and as we age. She also recommends trying vaginal weights from Femtone.com. They suggest placing a weight into the vagina. You need to keep it inside for 15 minutes in the morning and evening for two days. If you can accomplish that then you go to the next size.
I have been doing vaginal exercises for several years, and now I can share this little secret with you.