50NL: 2 pairs on the river

[jimmy44]

PokerStars No-Limit Hold'em, $0.50 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($14)
Hero ($49.50)
CO ($50.60)
Button ($14.75)
SB ($9.50)
BB ($61.15)
UTG ($53.05)
UTG+1 ($81.75)
MP1 ($59.20)

Preflop: Hero is MP3 with Q, K.
1 fold, UTG+1 calls $0.50, MP1 calls $0.50, MP2 calls $0.50, Hero calls $0.50, 1 fold, Button calls $0.50, SB completes, BB checks.

Flop: ($3.50) 7, Q, K (7 players)
SB checks, BB checks, UTG+1 bets $1.5, MP1 folds, MP2 folds, Hero raises to $4.3, Button folds, SB folds, BB folds, UTG+1 raises to $8.5, Hero calls $4.20.

Turn: ($20.50) 8 (2 players)
UTG+1 bets $10.5, Hero calls $10.50.

River: ($41.50) 2 (2 players)
UTG+1 bets $25, Hero ????

villain is unknown, I was on the table for 6 hands only.
I did a pretty big mistake by not raising PF. However, would you raise the turn? would you call river?

[Penfold]

idk its just such a sick mess when you limp in with position and a good hand. as played we're only afraid of one hand, 77, but the board is very drawy. you could make a pot commiting raise on the flop or just call down unless a scare card hits. no scare card hit, ez river call.

[jimmy44]

idk its just such a sick mess when you limp in with position and a good hand. as played we're only afraid of one hand, 77, but the board is very drawy. you could make a pot commiting raise on the flop or just call down unless a scare card hits. no scare card hit, ez river call.

I know I did a pretty good mistake by not raising PF ...
Doesn't the 3bet on the flop looks like 77 as villain keeps on betting up to the river? While my line looks like a missed flush draw with top pair maybe ...
Could you put him on 2 pairs? or AA?

[Da GOAT]

raise PF and stack off on flop