This definitely wasn't going the way Sandra expected. When she saw the androgynous male her sister had become, she expected him to find a big strong man and live in a gay relationship, reverting after the six months were up. Hanging around with a gay couple for a few months might even be fun. But no, Aman (such a weird choice of name) had immediately fallen into a straight relationship. And one of the most cliché straight relationships possible--one where the woman made all the important decisions while keeping the man happy with all the sex he wanted.
And even that might have been OK, except that Sandra, despite what she considered to be her best efforts to get along with Nora, found her mightily annoying. Her obsession with her own cuteness was perhaps understandable, considering the massive hulk she had been as a man, but it was boring. And it wasn't doing Aman any good, although he was getting too much sex to end the relationship--at least that was Sandra's analysis.
And so she had brought her friend Susan, now calling himself Sam after getting a fabulously hunky male body, over for coffee. "I need you to seduce my brother."