NL25: Top and bottom pair line check

[Emperor Norton]

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($27.85)
Hero ($36.95)
Button ($24)
SB ($18.10)
BB ($51.10)
UTG ($61.10)

Preflop: Hero is CO with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $1</font>, <font color="#666666">1 fold</font>, SB calls $0.90, <font color="#666666">1 fold</font>.

Flop: ($2.25) A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $0.75</font>, <font color="#CC3333">Hero raises to $3</font>, SB calls $2.25.

Turn: ($8.25) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $5</font>, SB calls $5.

River: ($18.25) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $5</font>, Hero calls $5.

My flop and turn bets could have probably stood to be bigger. When villain donk/called the flop I put him on a hand like a weak ace or a pair plus gutshot. I don't really need to protect against either hand on the turn, so I bet an amount I thought he could call. Is the river call standard?