PokerStars - 300/600 Ante 70 NL - Holdem - 9 players
Hand converted by PokerTracker 4: http://www.pokertracker.com

MP: 28.5 BB (VPIP: 32.56, PFR: 16.67, 3Bet Preflop: 5.56, Hands: 43)
MP+1: 31.4 BB (VPIP: 23.53, PFR: 11.76, 3Bet Preflop: 12.50, Hands: 17)
MP+2: 13 BB (VPIP: 14.29, PFR: 5.88, 3Bet Preflop: 11.76, Hands: 35)
CO: 12.15 BB (VPIP: 22.54, PFR: 17.65, 3Bet Preflop: 3.85, Hands: 71)
BTN: 40.87 BB (VPIP: 34.29, PFR: 29.41, 3Bet Preflop: 30.77, Hands: 35)
SB: 39.94 BB (VPIP: 40.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 5)
Hero (BB): 20.22 BB
UTG: 16.19 BB (VPIP: 16.67, PFR: 15.00, 3Bet Preflop: 5.26, Hands: 43)
UTG+1: 24.11 BB (VPIP: 25.00, PFR: 15.38, 3Bet Preflop: 14.29, Hands: 40)

9 players post ante of 0.12 BB, SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 2.55 BB) Hero has 2s 5s
fold, UTG+1 raises to 2.15 BB, fold, fold, fold, fold, fold, SB calls 1.65 BB, Hero calls 1.15 BB

Flop : (7.5 BB, 3 players) 7s 6s 9c
SB checks, Hero checks, UTG+1 bets 5.25 BB, SB calls 5.25 BB, Hero.... ?????

Ok, so my main question is, should i insta fold 52s in this situation in the bb or its ok to defend a few % of the times? So i bassically defend the 52s, and then face that flop, what should i do?