Good example of aggressive pocket pair play

25NL

Stack sizes:
UTG: $24.60
UTG+1: $35.25
UTG+2: $21.85
Hero: $24.80
MP2: $26.55
MP3: $3.15
CO: $14.70
Button: $22.80
SB: $17.55
BB: $16.20

Pre-flop: (10 players) Hero is MP1 with
UTG calls, UTG+1 calls, UTG+2 calls, Hero raises to $1.5, MP2 folds, MP3 calls, CO calls, 3 folds, UTG calls, UTG+1 folds, UTG+2 calls.

Flop: ($8.15, 5 players)
UTG checks, UTG+2 checks, Hero bets $6, MP3 folds, CO raises all-in $13.2, 2 folds, Hero calls.

Turn: T ($34.55, 1 player + 1 all-in - Main pot: $34.55)


River: T ($34.55, 1 player + 1 all-in - Main pot: $34.55)


Results:
Final pot: $34.55
CO shows KS KD
Hero shows 4D 4C

And you hit your set. nh.

Here's another reason why you want to raise Pocket Pairs. Villain not raising his 55 cost him his stack :

Party Poker No-Limit Hold'em, $ 50 (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($57.75)
UTG ($82.40)
MP ($60.38)
CO ($68.68)
Button ($17.16)
SB ($58.25)

Preflop: Hero is BB with 6, 3. SB posts a blind of $0.25.
UTG calls $0.50, MP calls $0.50, CO calls $0.50, 1 fold, SB (poster) completes, Hero checks.

Flop: ($2.50) 5, 2, 4 (5 players)
SB bets $1.5, Hero calls $1.50, UTG folds, MP raises to $6.61, CO folds, SB folds, Hero raises to $12, MP calls $5.39.

Turn: ($28) A (2 players)
Hero bets $20, MP calls $20.

River: ($68) 7 (2 players)
Hero bets $25, MP calls $25.

Final Pot: $118

Results :
Hero has 6d 3d (straight, seven high).
MP has 5s 5h (three of a kind, fives).
Outcome: Hero wins $118.

Dubble post