5/10 top two backdoors flush

[Heimdal]

Opponent is unknown. And I was lost. I didnt know what to do and when that is the case I too frequently call down because that is easy and I want to see a showdown

Party Poker No-Limit Hold'em, $ Hero (5 handed) internettexasholdem.com

Button ($1023)
SB ($995)
Hero ($1684)
UTG ($1095)
MP ($2393.82)

Preflop: Hero is BB with Q[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $5.
UTG calls $10, <font color="#666666">2 folds</font>, SB (poster) completes, Hero checks.

Flop: ($30) K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $25</font>, <font color="#CC3333">UTG raises to $60</font>, SB folds, Hero calls $35.

Turn: ($150) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $106.67</font>, Hero calls $106.67.

River: ($363.34) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $211.85</font>, Hero calls $1507.33 (All-In), UTG folds.

Final Pot: $2082.52

Also, what do I do if river is an offsuit 6?