Pasadena City College's "porn professor," who gained notoriety this year for teaching a controversial class on pornography, says he had sex with several students.

In a blog post dated Sept. 5, Hugo Schwyzer acknowledges allegations made by a woman under the pseudonym "Meagan," who claims to have had sex with the professor numerous times over an extended period in 2011.

The former student alleges they had sex after she invited Schwyzer to meet for coffee in May 2011 when she was 20. Afterward, she writes, "we continued to meet for sex, sometimes in his office with the door locked, for the next seven months until I graduated PCC in December 2011."...