guessing cards

[Mr. Ratface]

Interesting little scenario happened to me today while playing heads up agaisnt my cousin today in holdem. Very first, I look at my cards, and before any action has taken place announce he has jack 4. At the end of the hand he flips over jack,4. Very next hand, I look at my cards and say he has King, 6 and he immediately turns over king six in disbelief that I guessed it right two in a row.

So basically what are the odds of someone guessions the other person's hand two times in a row. The suit is not considered and the only information is the two cards I hold in each of the two guesses.
Thank you