Rex? Double Rex?

So a bit back i picked up a rex female... She had her first litter this is what came out...

Rat one. Least amount of hair
http://i1188.photobucket.com/albums/...Picture003.jpg
http://i1188.photobucket.com/albums/...Picture005.jpg
http://i1188.photobucket.com/albums/...Picture004.jpg

Rat two. A little more hair then rat one.

http://i1188.photobucket.com/albums/...Picture008.jpg
http://i1188.photobucket.com/albums/...Picture006.jpg
http://i1188.photobucket.com/albums/...Picture007.jpg

Rat three. This one just seems to have a "thin" spot of hair on the middle of its back.

http://i1188.photobucket.com/albums/...Picture010.jpg
http://i1188.photobucket.com/albums/...Picture009.jpg

They are molting, the first ones are double rex in molt and last one looks like a rex in molt.

Double rex's in molt
http://i915.photobucket.com/albums/a...w/PICT9177.jpg
http://i915.photobucket.com/albums/a...einmoltlol.jpg
http://i915.photobucket.com/albums/a...w/PICT4088.jpg

Rex's
http://i915.photobucket.com/albums/a...w/PICT1033.jpg
http://i915.photobucket.com/albums/a...w/PICT8234.jpg