Why does it have to be a dichotomy of kinky or non-kinky, black and white? You could always say to your new lover "I'm just a tiny little bit kinky, nothing remotely serious or hard." But some people would definitely consider a slap to the face in bed kinky! So admitting to a mild shade of gray would actually be more accurate. Alternately, you could say "I'm vanilla with just a sprinkling of cinnamon... and then only in the bedroom.
Me, 30ish bi female, been doing solo poly for roughly 5 years. Gia, Clay, and Pike, my partners. Davis, ex/friend/"it's complicated." Eric, Gia's husband. Bee, Gia and Eric's toddler.