Wicked Girl and sex educator jessica drake will lead the instructional seminar “jessica drake’s Wicked Guide to Blowjobs,” from 5:10 to 6 p.m. on Friday, February 4 at the Sexual Health Expo. SHE LA will be held at the California Market Center, 110 E. 9th St. Los Angeles, CA 90079. The adult superstar and 2017 XBIZ Awards recipient for Sexpert…