Kitsune rogue need help with build

[redhat mike]

in my friends game i am running a Kitsune Rogue knife master 1st lv and i need help figuring out as I level up how I can keep up in damage and keep up my social goodness in the process.
The other players are Human female Fighter, Human male Monk, and off and on druid.We are all first level and only using pathfinder and third party books.I have no problem multiclassing but the way I want my character is a shape-shifting behind the curtain person that can sneak around and steal things but stand his own if need be.

KATARA
Male Kitsune Rogue (Knife Master) 1
CN Medium Humanoid
Init+11;Senses Low-Light Vision; Perception +7
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DEFENSES
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AC 18, touch 15, flat-footed 13
hp 10 (1d8+2)
Fort +2, Ref +7,Will +3
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OFFENSE
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Spd 30 ft
Melee Bite (Kitsune) 4 (1d4/20/x2)
Dagger +1 (1d4+2/19-20/x2)
Unarmed Strike +1 (1d3+1/20/x2)
Special Attacks Sneak Attack +1d8/+1d4
Spell-Like Abilities Dancing Lights (3/day)
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STATISTICS
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Str 12, Dex 20, Con 14, Int 18, Wis 17, Cha 20
Base Atk +0; CMB +1; CMD 16
Feats Improved Initiative, Rogue Weapon Proficiencies
Traits Reactionary, River Rat (marsh or river)
Skills Acrobatics +10, Bluff +9, Climb +0, Diplomacy +9, Disable Device +8, Disguise +9, Escape Artist +4, Fly +4, Intimidate +9, Knowledge (Dungeoneering) +8, Knowledge (Local) +8, Linguistics +8, Perception +7, Ride +4, Sense Motive +7, Sleight of Hand +8, Stealth +8
Languages Common, Dwarven, Elven, Gnome, Senzar, Tengu, Tien
SQ Change Shape (Su), Fast Shifter (Su), Hidden Blade +0
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SPECIAL ABILITIES
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Change Shape (Su) Assume a single human form
Dancing Lights (3/day) (Sp) With Charisma 11+, cast Dancing Lights 3/day
Fast Shifter (Su) Using your racial change shape ability is a move action instead of a standard action
Hidden Blade +0''' +0 bonus on Slight of Hand checks to conceal a light blade
Low-Light Vision See twice as far as a human in low light, distinguishing color and detail
Sneak Attack +1d8/+1d4 +1d8 damage with a dagger-like weapon if you flank your target or your target is flat-footed

[Restores100HP]

If your game hasn't started yet, I would suggest changing from the Knife Master archetype to the Kitsune Trickster (if your INT mod is decent). That will help you with disguise and social skills.

But you could go TWF either way, which is always a great way to add damage.

[blackbloodtroll]

What do you want your PC to do?

You may be able to do it much better in another class.

The Rogue is famously weak.

[redhat mike]

i already saw a downside with taking the kitsune and taking the -2 to strength usually i play humans.I am playing the Kitsune so i can sweet talk the npcs and steal things in the process.My gm is letting me at lv 3 change the feat realistic likeness to work on any humanoid race.

[blackbloodtroll]

Have you considered the Bard?

You can totally get the sneaky, sweet talking, thief with the Bard.

[redhat mike]

I did actually but for some unexplain reason my dm hates bards with a passion.In the last campaign we were in we had to hunt this psycopath killer that was randomly killing people well after we caught him and question him we found he was just killing any bards he found lol.

[blackbloodtroll]

Class hate is bad DM behavior. Real bad.

Besides, there is no "I'm a bard" glow.

Something like the Arcane Duelist, or Archaeologist archetype has a whole different feel to it.

In fact, no one should dictate flavor or concept simply by the name of a class.

I can play a "ninja" character, without a single level in the Ninja class.

Unless your PC announces "I'm a Bard", no one knows.

[moon glum]

I would go the tail route, and collect extra tails. Every time you get a feat, take extra tail. You will gain many useful spell like abilities. Use your rogue talents for weapon finesse, and two weapon fighting.