I'm not sure how to approach this hand. Are we ever shipping this flop?

Villain 20/3 over 35 hands:

Full Tilt No-Limit Hold'em, $0.25 BB (7 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

UTG ($9.40)
MP1 ($11.44)
MP2 ($25.54)
CO ($44.25)
Hero (Button) ($26.99)
SB ($12.90)
BB ($8.40)

Preflop: Hero is Button with Q, A
2 folds, MP2 calls $0.25, 1 fold, Hero bets $1.10, SB calls $1, 1 fold, MP2 calls $0.85

Flop: ($3.55) 2, K, 9 (3 players)
SB bets $2.80, 1 fold, Hero ????

Total pot: $3.55 | Rake: $0.17