Wearing a suit gives one power, a sense of entitlement. A suit says, I mean business—but it's all up to the suit wearer to decide just what kind of business that is.
In the case of these two women, those suits don't stay on for too long. It seems they're both very experienced in the business of getting it on. Which works out well, cause everyone knows that the only thing better than a sexy lesbian in a business suit is a sexy lesbian (or two!) in her birthday suit.