During The Demon of Ice quest line on Dracia when I got inside the keep and encountered the Mad Psion the wiki says there's supposed to be an optional sex scene but the option isn't present. The only options I have are to Leave or Kill Her, the option to Goad Daliza into having sex with her and then joining in isn't there.
Note, I did use a save editor to modify things so it is entirely possible that that is the issue.
Note, I did use a save editor to modify things so it is entirely possible that that is the issue.