Getting aggressive with pocket sevens OTB

[Azhrarn]

Table is on the loose/passive side. No read on MP1 or CO. MP3 is loose/passive, and SB seems TAGgy.

Party Poker 5/10 Hold'em (10 handed) converter

Preflop: Hero is Button with 7[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img]. CO posts a blind of $5.
<font color="#666666">3 folds</font>, MP1 calls, <font color="#666666">1 fold</font>, MP3 calls, CO (poster) checks, <font color="#CC3333">Hero raises</font>, SB calls, <font color="#666666">1 fold</font>, MP1 calls, MP3 calls, CO calls.

Sometimes I limp here, but raising seemed better this time.

Flop: (11 SB) 3[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">MP1 bets</font>, MP3 calls, CO calls, Hero calls, SB calls.

In addition to my sevens, I have some backdoor draws, as well as some chance I'm in the lead. Calling seemed better than the other options.

Turn: (8 BB) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">MP1 bets</font>, MP3 folds, CO folds, <font color="#CC3333">Hero raises</font>...

Good card for me, and people are getting out of the way. If I got 3-bet, I was planning on calling and folding the river unimproved. Otherwise, I was planning on checking behind unimproved. Thoughts? Is this standard?