lust after

lust after (third-person singular simple present lusts after, present participle lusting after, simple past and past participle lusted after)

1. To have strong sexual feelings or desires for someone with whom the individual is not in a relationship with.
   • 1999 March 20, Natalie Angiers, The Guardian:

     David Buss, of the University of Michigan, another evolutionary psychologist of the unerring Nicene Creed, has said that asking a man not to lust after a pretty young woman is like telling a carnivore not to like meat.

• flustrate