Skin randomly changes in-game

In game my skin is different than what it is showing up on the pause screen. I logged out of minecraft and got back on, and the problem fixed itself, however whenever my friend joined on my skin changed again. I also noticed that my friend's skin was different as well. 

 

(the newest attachment)- That's what my skin is supposed to be. After my friend logged off and restarted the world, my skin went back to normal.