Is this FPS?

5 handed .5/1 on hollywood poker. First hand at the table so no reads.

I have K5o(suits irrelevant). UTG limps, UTG+1 limps SB completes i check.

Flop : Jd 5h 5s

checked around

Turn : 6c

sb checks, i bet, UTG calls, UTG+1 folds.

River: Qd

i check intending to check raise...