How you do it is you talk to Rhianna and you chat till you flirt (you can do this in any form) this is so you can play chess whit her and you talk to Elami after you lose the first challenge and you choose (I think) "I'd like to experience motherhood" and so you fail with nothing happening to you is why you talk to Rhianna so you can play with them and don't play patiently becase you win (I am not doing this again)