Kit Kat was a feral we trapped on the property to spay her.   She hung around after she was released and the other cats seemed to pick on her.  One night she ended up getting closed in on the front porch.  We somehow got her in a cage and brought her inside.  She has been inside now enjoying the air conditioning and beds for a few months now. 
Kit Kat is a little shy and needs some space until she learns to trust you.  She's not really a lap cat but does enjoy her head scratched once she gets to know you.   KitKat does not like being touched too much.  She is more of an observer than anything.   She will come to you when she is ready and on her terms.  

KitKat will stay in her foster home as a permanent foster since she is just too scared to adjust to changes