It probably has a bad reputation because it is an intensely private sexual behaviour, which no one discusses, even with the closest of friends. Self-abuse and self-pollution  were common in early modern times and are still found in modern dictionaries. A woman's orgasm between one minute before and 45 minutes after insemination favors the chances of that sperm reaching her egg. I think masturbation can be very stress-relieving. Sex doesn't burn that many calories". Retrieved 8 November Current Directions in Psychological Science.
Brandi Love Strips Off Her Work Out Clothes In The Gym Then Masturbates - CINEGAIA.ORG
Sexy Blonde Fitness Babe Works Out And Masturbates
In the Western world , masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment. For a list of terms, see the entry for masturbate in Wiktionary. It helps you to strengthen your relationship with yourself because when you know and love yourself deeply on physical and emotional levels, you gain confidence and let yourself grow through self-awareness. If, for example, she has had intercourse with more than one male, such an orgasm can increase the likelihood of a pregnancy by one of them. I just asked my boyfriend and best friend. The muscle tone, heart rate, and respiration increases and the uterus goes up from the pelvic floor, thus increasing pelvic muscle tension and strengthening the entire region. Understanding and Assessing Child Sexual Maltreatment.