Do i have to showdown this set?

[Biggenx]

Dealing card to Biggenx(BB): 7 of Diamonds, 7 of Spades

Villian (UTG+1) : calls $.2

Two more limp, SB completes, 5 see the flop.

** Dealing the flop: 7 of Hearts, 5 of Hearts, 4 of Spades

Biggenx bet - $1.00 (pot limit)
Villian calls, everyone else folds

** Dealing the turn: 8 of Diamonds

Biggenx bet - $1.20
Villian raised - $2.40
Biggenx called - $2.40

** Dealing the river: Queen of Spades
Biggenx checked
Villian bet - $4.00
Biggenx called - $4.00
Villian shows: Ace of Diamonds, 6 of Hearts
Biggenx mucks:
Villian wins $15.50 from the main pot

[djoyce003]

i'd fold it on the river because you led the turn on a 4 straight board and got raised....you represented the straight and he raised you basically letting you know he had it...i'd probably just call the turn, pray the board pairs.....it didn't so i'd fold to the largish river bet.

BTW if you fill up on the river, open push....no straight is folding.