LOL yeah that would do it. Uch I wouldn't say it's offensive as such but if I got a message like that then I would think you were a numpty who I couldn't possibly take seriously and so therefor not engage with you in any way.
I hope now you realise that girls/women don't like being spoken to like that whether we are a sex worker or not. It's just not cool.
You should speak to an escort the way you would any woman in any profession.