Hero BTN with K♥K♠

Multi-way Preflop | 3-way: BTN | 100bb effective | Difficulty: Beginner

Players in hand: CO, Hero (BTN), BB

Hero hand

K♥K♠

Board

(preflop)

Action so far:
CO opens 2.5bb
Hero BTN with K♥K♠

Pot: 4bb   To call: 2.5bb

Villain range: CO: 22+,A2s+,K9s+,Q9s+,JTs,T9s,98s,A9o+,KTo+,QJo

Your move: