Slow play or push top two pair?

[brian8065]

MP2 was limping a lot. I called, and flopped top two pair. SB bet, and MP2 called. I was the chip leader of this tourney at the time with 80 players left. Should I have raised like I did, or slow play this?

Poker Stars
No Limit Holdem Tournament
Blinds: t3000/t6000
(Ante: t300)
9 players
Converter

Stack sizes:
UTG: t74070
UTG+1: t92849
MP1: t36298
MP2: t177558
Hero: t255486
CO: t43319
Button: t126144
SB: t219640
BB: t66410

Pre-flop: (9 players) Hero is MP3 with :tc :qs
3 folds, MP2 calls t6000 , Hero calls t6000, 2 folds, SB calls t3000, BB checks.

Flop: :qh :ts :5d (t26700, 4 players)
SB bets t12000, BB folds, MP2 calls t12000 (pot was t38700), Hero raises to t60000, 2 folds.
Uncalled bets: t48000 returned to Hero.

Results:
Final pot: t62700