2 Pair against 2 All-ins on river

I have only Just joined the Table 3 hands ago and have no reads on the players. I think I did the right thing Here, Would be nice to know what everyone else would do.

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) FTR converter on zerodivide.cx

UTG ($30.85)
MP :#A500AF(Villian)/ ($58.30)
CO :#A500AF(villan 2)/ ($45.55)
Button ($37.65)
SB ($53.55)
Hero ($49.50)

Preflop: Hero is BB with 8[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/heart.gif[/img].
UTG calls $0.50, MP :#A500AF(Villian)/ calls $0.50, CO :#A500AF(villan 2)/ calls $0.50, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: ($2.50) 8[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets $1</font>, UTG folds, Villian calls $1, <font color="#CC3333">villan 2 raises to $2</font>, SB folds, Hero calls $1, Villian calls $1.

Turn: ($8.50) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $2</font>, Villian calls $2, <font color="#CC3333">villan 2 raises to $4</font>, Hero calls $2, Villian calls $2.

River: ($20.50) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">Villian bets $51.8 (All-In)</font>, villan 2 calls $39.05 (All-In), Hero folds.

Final Pot: $111.35

Results in white below: <font color="#FFFFFF">
Villian has 2c 9c (one pair, twos).
villan 2 has Ad Ah (one pair, aces).
Outcome: villan 2 wins $98.60. Villian wins $12.75. </font>