Kegel, or pelvic floor muscle exercises are done to strengthen the muscles which support the urethra, bladder, uterus and rectum. They enhance enjoyment of sex and women also do them after having babies to help retone the muscle's there and avoid problems later in life that are associated with child birth.

As for squirting up a wall..again exaggeration in porn..never...

Porn is a caricature of everything that is associated with sex. A gross exaggeration. A fantasy. All women are not Barbie dolls with more silicone than my computer chips. All men are not 12 inches of viewing pleasure and able to fuck for hours without cumming. There is all kinds of little tricks they use to make it look like the man is cumming buckets or that the women is squirting up a wall. I think the more common experience is what the women who have commented here have had.