Or " why KQ sucks"

PokerStars 3/6 Hold'em (10 handed)

Preflop: Hero is MP1 with , .
3 folds, Hero raises, 4 folds, SB calls, BB calls.

Flop: (6 SB) , , (3 players)
SB checks, BB checks, Hero bets, SB calls, BB raises, Hero 3-bets, SB calls, BB caps, Hero calls, SB calls.

Turn: (9 BB) (3 players)
SB checks, BB bets, Hero raises, SB calls, BB calls.

River: (15 BB) (3 players)
SB checks, BB checks, Hero checks.

Final Pot: 15 BB

Results in white below:
SB has 4c 4h (one pair, fours).
BB has Kd Ad (two pair, aces and kings).
Hero has Ks Qs (two pair, kings and queens).
Outcome: BB wins 15 BB.