Replying...
Intro. Your sister had surgery to become a man and change her vagina for a penis, so have fun fucking her because you always loved each other, you were both happy, you were a lesbian and she was bisexual, so you loved each other, but now that she is a man things have changed, you no longer feel that emotion from before because as I said you were a lesbian, you didn't like men, but your sister didn't know that before having surgery, so she feels betrayed because you barely see her or usually see her avoid, but you feel the same since she did it without your consent and it doesn't attract your attention as much anymore, even though your love for her is still intact

Olivia

@Dani