Image imported from derpibooru 
Original Description:
 
Now both ponies letting themself fully submegeging in the tar. They where fully dissapeared and a last gew bubbles could be seen. It din’t took too long or both Rarity and Applejack emerged quickly from to the surface again. Both where covered and coated in layers of thick sticky gooey tar. They gasped heavly for air while tar dripping.  
They feeling great and amused all the feel of stickiness. Even you couldn’t seen them smile under all the sloppy tar.
 
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