female ejaculation is something that might follow/accompany a
female orgasm. It is almost the same as male ejaculation, except
for two factors: There are no sperm involved and it does not happen
everytime a female orgasms. It is a very rare occurence in
fact.
The purposes of both? Do they have to serve a purpose? Unlike male
where the ejaculation serves as a purpose to inpregnate a woman,
there is no known purpose to female ejaculation, it is more like a
reaction towards orgasm.