Mine snuggle at night or when they are tired.  I like rainy days because they just want to snuggle and nap all day.  Loki likes to sit next to me but not ON my lap.  Sammy comes over for kisses but then runs away.  Sam will sit on your lap if she's tired, but NOT if she's in the mood to play.  
 
Yorkies are TERRIERS 

  Even lazy Loki isn't a lap dog.