Well, the defense itself isn't horrible, but the call on the river is funny as hell.

PokerStars 1/2 Hold'em (9 handed)

Preflop: Hero is CO with , .
5 folds, Hero raises, 2 folds, BB calls.

Flop: (4.50 SB) , , (2 players)
BB checks, Hero bets, BB calls.

Turn: (3.25 BB) (2 players)
BB bets, Hero raises, BB 3-bets, Hero calls.

River: (9.25 BB) (2 players)
BB checks, Hero bets, BB calls.

Final Pot: 11.25 BB

Results in white below:
BB has 5c 6d (high card, ace).
Hero has As Th (two pair, aces and tens).
Outcome: Hero wins 11.25 BB.