You need to slightly edit the script to be able sleep with Frankie, or you can edit that variable with F2se. You don't get anything else than sexual experience though. They might first have planned for you to be able to sleep with Frankie but then later decided to go with Billie instead. I would like this to be fixed though. The light generator has been moved to another level. Also the agility serum is missing in RP 2.0, but it will be back in the next release.