I Swapped Socks...

So I lied to my sister this morning because she has these super cute socks that have little kittens on them. She loves them but our mom just bought me new ones and they're not as fun. Yesterday, when we were both doing homework at the kitchen table, I... kinda took her sock without her noticing. Today, I had a hole in mine so I put hers on and pretended everything was normal. Now she's asking where it is and I can tell she thinks something fishy is going on because my foot fits weirdly into her kitten socks... and she always knows these things. It's not really hurting anyone but I feel bad for taking something that isn't mine. Maybe I should just give hers back? ...