Calling two back after limping

[Guthrie]

The consensus on 2+2 seems to be to always call one back after limping preflop. But what about two, or three? I tend to not call two back without a monster hand unless table conditions warrant. Here's one one of cases where I wonder if it's correct to call. There's a late poster, lots of money in the pot, QJs could make a monster, I'm getting about 5.5:1, and all these people probably don't have a hand, they're just along for the ride. Is there any standard line in these cases, or does it "just depend?"

First orbit and my HUD has never met any of these players before.

PokerStars 1/2 Hold'em (9 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG+1 with Q[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img]. MP3 posts a blind of $1.
UTG calls, Hero calls, MP1 calls, <font color="#CC3333">MP2 raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">CO 3-bets</font>, <font color="#666666">1 fold</font>, SB calls, <font color="#666666">1 fold</font>, UTG folds, Hero ?

Also, in situations like this, after calling two back, very often some donk feels obligated to cap just for the hell of it, meaning the decision to call two may well require a commitment for three.