TPGK c/min raise and further street pressure

[OSUGreg1983]

Villain 20/15 over a short sample size. Haven't been at the table for more than about 20 hands, but getting cards and tons of action. Have not been caught bluffing; villain hasn't splashed around much since I've been here.

Poker Stars, $0.05/$0.10 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

CO: $6.45
BTN: $11
SB: $8.95
BB: $10
Hero (UTG): $20.20

Pre-Flop: A[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $0.40</font>, CO calls $0.40, BTN folds, SB calls $0.35, BB folds

Flop: ($1.30) 8[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/club.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $0.95</font>, CO folds, <font color="red">SB raises to $1.90</font>, Hero calls $0.95

Turn: ($5.10) 3[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $1.90</font>, Hero calls $1.90

River: ($8.90) 6[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $4.75 and is All-In</font>, Hero is getting nearly 3-1