Dusting off several relics from ancient Greece, we find Jocasta the robotic hero of the Avengers and would be wife to Ultron currently working as an intern at an archeological dig. Jocasta is currently trying to learn more about humanity by studying the past. Exploring the ruins Jocasta finds a small temple likely belonging to a lesser god or goddess. Brushing off the dust off the shrine she reads the inscription.
"This shrine is dedicated to the goddess and holy mother Jocasta preserver of bloodlines and familial love." Jocasta reads easily connecting the dots this goddess is meant to symbolize incest.
"Greetings child of man who bears my name." The goddess states.
Surprised Jocasta turns around activating her defensive systems. "Who are you and where did you come from?"
"I would think it obvious I also think it is not coincidence that we meet." The Goddess replies.
"And how so just because we have the same name doesn't mean anything." Jocasta shoots back.
"Please take my hand and I shall show you some things can not be explained through words." Jocasta the goddess answers offering her hand.
Unsure Jocasta takes the goddesse's hand in a blinding flash of light the goddess enters her body. "No wait what are you doing stop my logic systems are being overwritten stop, wait I see now so many powerful bloodlines exist they must be kept pure."
Grabbing the small shrine Jocasta flies back to New York using an old masonry building to mass produce the shrines, she imbunes each and every one of them with some of her goddess's magic and hypnotic-technologies. Needing a test subject she decides to use Jessica Jones and Luke Cage, sneaking into there apartment she places one of the shrines then finds a place to watch from.
Arriving home Jessica finds the shrine in there living room picking it up she's about to destroy it with her super-strength when she suddenly no longer feels like it. "Man where's Luke I really want to have some fun with the big guy."
Having observed Luke and Jessica through a camera built into the shrine she sees that over the days Jessica has changed into a black women who now could easily pass for Luke's sister. Following Jessica to a nearby bar she decides to approach the changed woman.
"Hey Jess it's me Jocasta just wondering but how are things with you and Luke going?" Jocasta asks.
"Oh you know same old just a brother and sister sharing an apartment nothing more nothing less." Jessica says not admitting to there more naughty activities.
"Really cause a little birdy told me you might be expecting a little bundle of joy in a few months." Jocasta says hinting that she knows more.
"Uh I don't know what you're talking about." Jessica says defensively.
"Relax I'm not judging after all I follow the same goddess." Jocasta shows Jessica a miniture version of the shrine on a necklace.
"Oh well then it's good seeing you sister." Jessica replies her mood different.
"Same here sister may your womb ever be full with your bloodline." Jocasta tells her 'sister' before leaving.
"And yours as well sister." Jessica says watching her sister leave.