You may want to "re-train" your reflexes. A step through weakens the geometry of a frame, and is an archaic throwback to when a woman couldn't wear pants or shorts. Almost all quality women's frames now will NOT have a step through...simply different geometry to be more efficient for the female biker.
Not to get all "women's lib" on you, but a step through all but says "a woman can't ride a sound bike frame because she must wear clothing that precludes activity."
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Good night...and good luck