Playing KK heads-up, a little tricky

Full Tilt Poker Game #11731506251: $11 + $0.50 Heads Up Sit & Go (88007027), Table 1 – 15/30 – No Limit Hold’em – 12:07:37 ET – 2009/04/17
Seat 1: Scotty Adams (1,560)
Seat 2: omgsosick (1,440)
omgsosick posts the small blind of 15
Scotty Adams posts the big blind of 30
The button is in seat #2
*** HOLE CARDS ***
Dealt to omgsosick [Kd Kh]
omgsosick raises to 90
Scotty Adams calls 60
*** FLOP *** [3s 8d Ts]
Scotty Adams bets 120
omgsosick calls 120
*** TURN *** [3s 8d Ts] [5h]
Scotty Adams checks
omgsosick bets 375
Scotty Adams raises to 750
omgsosick raises to 1,230, and is all in
Scotty Adams calls 480
omgsosick shows [Kd Kh]
Scotty Adams shows [5s Ac]
*** RIVER *** [3s 8d Ts 5h] [8s]
omgsosick shows two pair, Kings and Eights
Scotty Adams shows two pair, Eights and Fives
omgsosick wins the pot (2,880) with two pair, Kings and Eights
*** SUMMARY ***
Total pot 2,880 | Rake 0
Board: [3s 8d Ts 5h 8s]
Seat 1: Scotty Adams (big blind) showed [5s Ac] and lost with two pair, Eights and Fives
Seat 2: omgsosick (small blind) showed [Kd Kh] and won (2,880) with two pair, Kings and Eights