the kings

[theBruiser500]

5/10 NLHE on PS, I have kings UTG, my two opponents have 1k and I have them covered. To my left is vagos, he is loose/agressive good, and the SB who calls my raise is slightly loose preflop (maybe this is just against me), tight postflop and good, twin-caracas. I raise to $40 and these two dudes call. Flop is

234o

Twin-caracas leads out for $120. Could be a bluff, any pocket pair, a set. People that have played with him, does that read sound reasonable? A few lines here I could take, what do you guys think?

edit: a pure bluff is the unlikliest