Live 5/5 NL $1k-max Hand #2

[Joe Tall]

Same game as Hand#1. The PFR in this hand is the SB from Hand#1, he just sucked out in a huge pot before this hand and is a big stack $2.5k~. The button is running bad, and just rebought for $300, giving him a total of $350. I've won a few hands and have about $1700~ or so behind.

3 limpers and the SB from Hand#1 raises to $100, the button calls (leaving him $250), you are in the SB w/KK.

Your action?