A theory I formulated sometime back (one of many) is that girls' voices mellow, though they don't change as much as (most) guys'. And this was confirmed, dramatically in fact, by someone whose tone in 9 months changed from high pitched and squeaky to, one err, less high pitched and no longer squeaky, but more smooth. Oh and she picked up a happy SPG-ish accent too :)

-shrills-
lYke, siNCe wHeNz? ~*
(= ^ _^ =)

grins, haven't polished my intracaps in awhile. you and crys are loathesomely mean creatures!

[Ed: You've just revealed yourself! Not my fault ah. :) And Jap smilies too, tut tut.]