Kate Upton -- WANNA SEE WHAT I'LL LOOK LIKE IN 20 YEARS ... Check Out My Hot Mom

Are you planning to marry Kate Upton one day???

Well, good news ... she's probably gonna stay hot ... at least judging by this photo of her mother.

21-year-old Kate took a little stroll with her mom Shelley yesterday after the two lunched at super-pricey, celebrity eatery, Nello in NY.

Good genes in that family.