Bet the river?

[HajiShirazu]

Crypto 1/2
Hero dealt K /images/graemlins/diamond.gifJ /images/graemlins/spade.gif in SB
CO (poster) checks, Hero completes /images/graemlins/frown.gif-I know, I know...I didnt notice CO posted, raise even if he paid to come in?...BB checks.
Flop A /images/graemlins/spade.gif J /images/graemlins/diamond.gif T /images/graemlins/diamond.gif
bet-call-fold
Turn 2 /images/graemlins/spade.gif
bet-call
River A /images/graemlins/diamond.gif
Obvious bet right?