How would you play this on all streets, no reads.

Party Poker No-Limit Hold'em, $ BB (9 handed) FTR converter on zerodivide.cx

Button ($69.18)
SB ($55.62)
BB ($71.35)
UTG ($66.50)
UTG+1 ($71.08)
MP1 ($53.55)
MP2 ($48.25)
MP3 ($25.81)
Hero ($94.43)

Preflop: Hero is CO with A, A. SB posts a blind of $0.25.
2 folds, MP1 raises to $2, 2 folds, Hero raises to $5, 3 folds, MP1 calls $3.

Flop: ($10.75) 9, 2, 7 (2 players)
MP1 checks, Hero bets $7, MP1 calls $7.

Turn: ($24.75) J (2 players)
MP1 checks, Hero bets $15, MP1 calls $15.

River: ($54.75) 7 (2 players)
MP1 calls $26.55 (All-In), Hero folds.

Final Pot: $81.30