It may sound inviting and sensual, but the balance of breath to tone is out of whack. It's far better to develop a female-sounding voice within your range, than to go outside of that range. Feminine communication behaviors are different in basic use of vocabulary. For example, women have a much broader color vocabulary than men, as they deal with fashion more. Moreover, women have a broader vocabulary about food and other topics traditionally considered a woman's domain.
Women also use intensifiers to express emotionality.
Centuries of having to depend on the goodwill of others has created a famale vocabulary which is often more approval-seeking, even supplicating. Women use tag questions more. And, sometimes, they'll couch a sentence in double and triple requests. Women's nonverbal communication is just as significant. They maintain more intimate eye contact with the person they speak to, and have a more frequent social smile.