The event boasts a cornucopia (or is that pornucopia?) of sex-related seminars, product vendors and personal appearances by current and veteran adult-entertainment stars.
Knox will be have a booth at Exxxotica where she'll sign autographs from 6 to 11 p.m. Friday and 3 to 9 p.m. Saturday. She'll also attend the Fanny Awards, where she's up for New Girl on The Block - Best Newcomer. (Cast your vote at thefannys.com.)
Other event highlights:
"Real Sex vs. Porn Sex": A seminar hosted by adult-film superstar Nina Hartley (6:30 p.m. Friday).