Villain is TAG and seems decent. I really need to learn how to handle these.

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($90.30)
MP3 ($285.65)
CO ($99.40)
Button ($23.60)
SB ($53.05)
BB ($99.30)
UTG ($96.05)
Hero ($95.60)
MP1 ($105.55)

Preflop: Hero is UTG+1 with K, K.
1 fold, Hero raises to $4, 2 folds, MP3 calls $4, 4 folds.

Flop: ($9.50) J, 4, 6 (2 players)
Hero bets $5, MP3 raises to $17

What's the plan for the rest of the hand? Assume the turn and river are blanks.