A babe who is demisexual(or just uninterested in casual sex) and appreciates generosity in a respectful/healthy way. Somewhat similar to a sugar baby but without the sexual implication.
Examples:

"A stevia babe goes out with you if you're paying, but she's probably not gonna sleep with you."

"Our love is purely platonic but I'm usually the one paying when I'm with my adorable stevia babe."
by SundayMoonday April 10, 2016
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