NL10 - TPTK + gutshot 250BB deep, RR pot

[yasher]

I got my stack by felting AA vs an aggro donk on a relatively scary board, but I've only been here a few orbits. CO had his stack when I sat down, and I've got him at 26/8.7/0.74 over a hundred hands or so. No reads - still gettin this note taking/read making thing down.

Poker Stars - No Limit Hold'em Cash Game - $0.05/$0.10 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $3.35
Hero (BB): $25.75
UTG: $20.00
CO: $23.65
BTN: $12.35

Preflop: Hero is dealt K[img]/images/graemlins/heart.gif[/img] A (5 Players)
UTG folds, <font color="red">CO raises to $0.40</font>, BTN folds, SB calls $0.35, <font color="red">Hero raises to $2.00</font>, CO calls $1.60, SB calls $1.60

Flop: ($6) K[img]/images/graemlins/spade.gif[/img] T Q (3 Players)
SB checks, <font color="red">Hero bets $5.00</font>

I haven't gotten to play 200+ BB deep very often, so I'm not quite sure about this hand. I've gotta bet this flop, but I recall being quite confused about what I was going to do if he came over the top of me. I realize this is NL10 and they canhave anything here, but this board is ugly, and I've only got a 4 out redraw if I'm behind.

Am I supposed to be happy stacking off on a flop like this with TPTK?