"why dose Rogue were skimpy cloths in the comic book sometimes. "

This is why I preferred her look in X-Men Evolution... 
 

i think this is because most comic book artist are notoriously bad at drawing any character in civilian clothes. Although one could argue that covering up so much and so often makers her like, want to binge on skimpy Daisy Duke style clothing, because, at least when she is around the mansion, people are smart enough to not get extremely close to her when she isnt wearing that much.
 
Either way, her outfits, like many other characters civilian clothes, are awful, and I still blame it on the artists.

Rogue is a strong, powerful and brave woman, to me she looks good no matter what she's wearing.