I have no idea why my wife came home from work with a hot body

I always trusted my wife too much, because she never gave me reason to think otherwise about her... But in fact I always found it very strange that she came home with her body all warm. She kissed me and even felt a different full exhaling from her mouth, including her body too and not to mention the fact that her pussy that is already big and greasy always seems to be all swollen...