There are several benefits for a woman to exercise her vagina:
This will...
...make it easier for you to reach orgasm.
...make your orgasms stronger/better as the muscles you're exercising are the same as used during orgasm.
...make your vagina more sensitive(you'll feel more). When squeezing you'll feel your partner much better inside. It will simply heighten your sexual satisfaction.
...prevent prolapse and incontinence.
...make childbirth easier and your muscles will regain more quickly after the birth.
- For your boyfriend it will be a tremendous difference. You will get tighter. You can pull and squeeze your partner's penis.
- You don't have to be nervous the first time you make love with a new partner, wondering what he will think of you as a sexual partner. You'll have better sexual self-confidence. You'll know that your present/future boyfriend/husband/lover won't be disappointed.
- Men prefer women with a strong vagina (to many men it's more important that his lover has a strong vagina than having a perfect body). In some cultures women exercise their vaginal strength in order to help them keep their future/present husband.
- You can be proud of your vaginal strength(just like one can be proud of one's body).
- The woman will get more control in bed. Many women enjoy that and think it's fun.