Good info re: premature, soft ejaculation

Whether masturbating or with a partner, “never ejaculate unless the penis is in full erection”.
Because repeated ejaculation at mild erection will become a habit. Then, he may ejaculate with the slight vaginal stimulation.
So, do not ejaculate unless the penis is hard and in full erection whether in the actual intercourse, in masturbating, or in the extracted ejaculation, or in the ejaculation into her mouth during fellatio.

http://www.mumyouan.com/