(noticed a bug - when Djen tops you, he will display both the first ass tf and second ass tf dialogue (asshole and prostate) if you had no ass tfs before but doesn't actually give you the 2nd -- and doesn't display the prostate line during sex if you already have the first mutation from initial mutation or Orphion, but actually gives it to you)
also: denying Orphion once seems to lock out all other options other than 'Ask about his experiments' even after days and reencountering him