60/120 AKs

[Seether]

This is a hand played by a friend of mine.
The game is 6handed and villain in this hand is player who seems to be solid, he is also very aggressive, possibly slightly over aggressive.
Hero is in the CO with AsKs.
UTG(villain raises), folds to hero, hero 3 bets, blinds fold, villain calls.

Flop: 7s Kd 4s
Villain checks, hero bets, villain raises, hero 3 bets, villain calls.

Turn: [7s Kd 4s] 9s
Villain checks, hero bets, villain raises, hero calls.

River:[7s Kd 4s 9s ]5h
Villain bets, hero raises, villain calls.

What do you think of this line? Is smooth calling the turn better than 3-betting?