how many times and how long should a 21 year old female masturbate for
As many times as you want and as long as it takes to achieve satisfaction. XD
Im 37 year old female I masturbate every day usually using a dildo or a vibrator and rubbing mg clit I usually climax within about 10 to 15 minutes. I have even masturbated more than once a day. It's very normal to masturbate so don't worry about it.