The 60-year-old economics professor obsessed over a woman in his class. He also indicated he lost interest in another student after she stopped showing her thong underwear by dressing more modestly.
The e-mails were sent to a professor at Palo Alto College, another San Antonio institution.
Ayers was fired last year after officials went through his computer following complaints from a graduate student who said she heard sexual noises coming from his office.
A faculty hearing tribunal overturned Ayers' firing in May, saying the school's computer-use policy banning obscene materials didn't apply because his termination letter accused him of accessing sexually explicit materials. A final decision from the UT Board of Regents is expected this month.
It's unknown whether Ayers acted on his fantasies. His attorney, Javier Maldonado, said the university is looking for any way to bring down his client after the tribunal ruled that the policy didn't apply.
Slideshow archive | ABC13 wireless | Headlines at a glance