NeNe Leakes -- I Never Said NEVER About Charity Donation ... But I Still Don't Believe Kenya Moore

NeNe Leakes now says she might donate money to Detroit's schools after all ... but she sure as hell ain't gonna do it just because Kenya Moore did -- IF Kenya did at all.

We talked to the "Real Housewives of Atlanta" star at LAX, and she defended the fact she hasn't paid up her end of the $20K deal she made with Kenya to support a charity of her choice.

Check out the clip ... NeNe rips off a list of questions she needs answered before she writes a check. But at a point, doesn't this start to feel like a giant stall tactic?