Party 0.50/1 BB flopped 2 pair

[SixForty]

I like it. When Villain doesn't raise you on the turn, he's almost always on a lone K here.

Another line that can work well when in position like you are here is to just call the raise and then raise the turn card. This is best if you know he'll autobet the turn. Without many hands against him though, I think either line is fine.

Excellent river bet!