Dean and Sam both have a lot of experiences of being physically used, breached, possessed etc - of having their bodies and each other's bodies become not theirs. They also have (had?) a lot of intimacy and trust with each other. Tell me about how this influences their daily lives - not the dramatic breakdowns necessarily, but the little things they know to be careful about or need to do to cope, the things they think about, feel about or do differently, etc.