A cat costume

You're baffled as you reach into the box and pull out what seems to be a headband with a pair of cat ears on it. You see that there's more in the box and hope it'll make things more clear. You reach back in and pull out a pair of long rounded mittens, the pattern on the bottom make them look like paws. You put them down to the side, still confused as they did not help answer your questions, nor does the next thing you pull out, long, soft knee-high sock. Like the mittens, they have a paw pattern on the bottom, the top seems even stranger, as there is extra padding right where your knees would be. You place it all on the ground next to you, examining it. You have no idea why Olivia would want you to wear these. You take one more look in the box and see something else, you pull out the long soft object, it looks just like a cat tail, as you get it fully out of the box you pause. At the end of the tail hangs a small rubber conelike object. This couldn't be what you think it is, could it?

You look over all the items, your confusion has not been settled, in fact many more questions flood your head, one being, should you actually do what the card says, should you put these on?