My T like cracks his joints usually probably ankle joints at times and it used to bother me,that cracking sound... and I used to think it was like he subconsciously didn't like me so would do that.. but.. then I put something on the forum a while ago and someone mentioned that maybe his joints really hurt and he doesn't even notice.. I don't really care... hes a great T... but it was annoying for a while.. i just ignore that now and try to focus on whats going on.