How earrly do we fold two pair?

Alright what's your line on each street.
mp1 is 40/7.4/.6 mp3 is 23/8.7/.6
Party Poker 2/4 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG+1 with Q[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">MP1 3-bets</font>, <font color="#666666">1 fold</font>, MP3 calls, <font color="#666666">3 folds</font>, BB calls, Hero calls.

Flop: (12.50 SB) K[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, Hero checks, <font color="#CC3333">MP1 bets</font>, MP3 calls, BB calls, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">MP1 3-bets</font>, MP3 calls, BB calls, <font color="#CC3333">Hero caps</font>, MP1 calls, MP3 calls, BB calls.

Turn: (14.25 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, MP1 calls, <font color="#CC3333">MP3 raises</font>, BB calls, Hero calls, MP1 calls.

River: (22.25 BB) 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, Hero checks, <font color="#CC3333">MP1 bets</font>, <font color="#CC3333">MP3 raises</font>, BB folds, Hero folds, MP1 calls.

Final Pot: 26.25 BB