The very welcome sense of excitement when one is turned on by one's partner. It often occurs suddenly and unpredictably after
long periods of the
couple's intimate complacency. It can
sometimes happen when one of the partners mistakes his or her spouse for another person.
Felicia: "What's that look for?"
Horatio: "Your shoulders look really nice today."
Felicia (purring
now): mm mm spousal arousal, huh?
Horatio (panting now); Uh huh.