Two live game river decisions (Bay 101)

[Keats13]

Bay 101 6/12 hold'em, 2/6 blinds, $3 live collection on the button

Hand 1: Hero is button with 6[img]/images/graemlins/club.gif[/img],6[img]/images/graemlins/diamond.gif[/img]

Preflop: 3 limpers, 2+2'er JSD raises in the CO, hero semi-coldcalls, blinds and all limpers call.

Flop (13.5 SB): K[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/spade.gif[/img] (7 players)
Checked to JSD, JSD bets, hero raises, SB and BB call, all others (including JSD) fold.

Turn (10 BB): 4[img]/images/graemlins/heart.gif[/img] (3 players)
2 checks, hero bets, blinds call.

River (13 BB): 8[img]/images/graemlins/diamond.gif[/img]
Checked to me, I check behind.

Hand 2: Hero is UTG with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img]

Preflop: Hero raises, folded around to pretty loose, somewhat aggressive player in LMP who cold-calls, button and blinds fold. Heads-up.

Flop (5.3 SB): Q, 8, 5 rainbow
I bet, LMP raises, I call. Check/raising any non-Q turn.

Turn (4.7 BB): K, putting 2 spades on board.
LMP bets and calls the check/raise.

I bet the river dark.
River (8.7 BB): 4, no flush. LMP raises. Hero...

call? 3-bet and call a 4-bet? 3-bet and 5-bet?