Life is so fresh, life is every day so new if we are fighting, only for the best. Sometimes I think the only real satisfaction in life is failure, failure in your endeavor to do your best.
It is love rather than sexual lust or unbridled sexuality if, in addition to the need or want involved, there is also some impulse to give pleasure to the persons thus loved and not merely to use them for our own selfish pleasure.
I tell my students you have an absolute right to write about people you know and love. You do. But the kicker is you have a responsibility to make the characters large enough that you will not have sinned against them.