These dynamics of high desire and low desire are not restricted to sex, but occur in many areas of marital life and result in ongoing conflict. (bettermarriages.org)
In other words, people perceive having sex for approach goals (vs. avoidance goals) as being associated with higher desire and satisfaction regardless of the person's gender or relationship length. (scienceofrelationships.com)
I have heard a few people that train gun dogs say that they think it requires a real high desire dog or is only necessary with such. (hawkeyemedia.net)