Editing Mark Corrigan (section)

==== Sexuality ====
In Series 1, Episode 4, Mark ponders whether he has developed a homosexual crush on Alan Johnson, then only a visiting speaker at JLB. To explore this side of his personality, Mark rents gay pornography but ultimately concludes that he is "possibly bi, but basically un-curious." Alan eventually becomes Mark's boss, and Mark remains paranoid about his potential feelings for him.

Mark is highly sexually frustrated and somewhat repressed. He is disgusted by Jeremy's licentious views (if not always practices) on casual sex and kinky behavior. Initially, his sexual anxiety was partly due to a testicular hydrocele, which made him paranoid. Although the swelling was reduced by surgery, his fear that women will be unimpressed with his genitals persists.