while any exchange of fluids or cells begins familiarly, eventually exchanges occur with people further removed, genetically. a kiss, shared food, sexual exchanges, a blood transfusion even (though this is not in line with the point i'm attempting to make).
eventually, the creation of some of your cells is dependent upon whatever digested cells have been exchanged between you and that other person. and so you are part of someone, and they are a part of you. because even thought that cell might die, it will have replicated itself and so the cells live on.
and i know that this same rationale could be applied to that carrot that i ate last week, or to all the skin cells one inhales every day. but those things don't interest me. for one, carrots suck. and for another, i'm interested in the voluntary exchange between two people.
i like the idea of living in someone else, and them in me. perhaps it is an odd way to think of it, which is why i don't very often. but i like it when i do.
well, i'm in no hurry