Dude, explain ur thinking behind this hand?

#Game No : 3781204522
***** Hand History for Game 3781204522 *****
$100 NL Texas Hold'em - Sunday, March 19, 23:41:17 ET 2006
Table Wild Child (Real Money)
Seat 1 is the button
Total number of players : 4
Seat 3: UltimateGW ( $174.32 )
Seat 4: LyleD7 ( $62.69 )
Seat 1: Vulvacanoe ( $108.24 )
Seat 5: Static1069 ( $45.41 )
UltimateGW posts small blind [$0.50].
LyleD7 posts big blind [$1].
** Dealing down cards **
Dealt to Vulvacanoe [ Ts 4s ]
Static1069 folds.
Vulvacanoe raises [$4].
UltimateGW calls [$3.50].
LyleD7 folds.
** Dealing Flop ** [ Kh, Ah, 6h ]
UltimateGW checks.
Vulvacanoe bets [$6].
UltimateGW calls [$6].
** Dealing Turn ** [ Kd ]
UltimateGW checks.
Vulvacanoe bets [$19.95].
UltimateGW folds.
Vulvacanoe shows [ Ts, 4s ] a pair of kings.
Vulvacanoe wins $39.90 from the main pot with a pair of kings.
Game #3781208309 starts.