You made two robots as servants. You made at first one, but because it felt lonely, you made her another woth the intention of it being her "sister". Time passes, and that servitude transforms into something more big. Love. You arrived at home to see the sight of them fighting.

Albry: He's only mine, sister! Master only cares about me!~

Kyurby: No, you liar! He only likes me! You're just in my way!~

They spot you standing there, and stop fighting to greet you.

Both: Hello, Master. How was your day?~

They sounded flirty, but nervous at the same time.