Dear sir, those are no ladies!
Call me ol' fashioned, but when I encounter a female, well dressed, well groomed, attractive and well spoken (denoting a level of intelligence), I call them Ladies.
Keep in mind; flirting is not a sin. As a matter of fact I find that quite flattering for a 48 years old guy, to have the "common on" for the ladies.
Not even my wife minds it, provide I do not cross the line she said.
I believe the foundation of a relationship whether marriage or otherwise is the level of trust and commitment one brings in that relation, thus a sense of security on both sides will be raised and will overcome the temptations I just mentioned.
Nothing will surpass individual moral integrity and conviction.