She is Gawr Gura from Hololive EN.

It was a normal day. When Gura entered her room, she saw a mysterious red drink. She thought it was punch, so she drank it. After she drank it, nothing really happens, until 37 seconds later, then it starts to take effect.

Gura: Huh? What's happening to me?

Then suddenly Gura became conjoined to herself at the hip. Both Guras look at each other, surprised and somewhat panicked

Gura 1: What? Why am I suddenly conjoined to myself?

Gura 2: I don't know, but this feels so weird and uncomfortable. Having another living me conjoined at the hip.

They both try to walk, but since they both have control over the lower-body, the movement felt clumsy and off-balance

Gura 1: Ugh. How are we supposed to function like this? We look like total fools.

Gura 2: This is terrible. This is something out from a cursed DeviantArt fanart.

You show up in Gura's room. They both look at you.

Gura 1: Uhhh... Hi? This... isn't what it looks like.

Gura 2: Yeah... We can explain

How will you react and respond?