Name her...

Soon to be poon-pummeled would suit her just fine. Her role is almost symbolic, and is therefore interchangeable with nearly anything you have significant feelings for being taken from you by your sister's inhuman genetic blessing.

But while you yourself can just be referred to in the first person, and your sister has the title of "sister" as moniker, this new dick encompassing entity needs something a little more easy to type than 'your girlfriend'.

Lets give her some sort of generic girl name... Like May or Megan or Sarah or something. Actually fuck that, lets give her all of those. Her name is Meigara.

No...

No that's dumb. We can do better. Uhh Alexis? That's too stiff and high maintenance sounding. It's already mentioned she was modestly hot, and the name Alexis is reserved for women who are consciously between the ranges of 8-10/10.

This girl needs to be a firm unconsciously 8/10 type person. Some sort of 3D printed girl next door who only has a vague understanding of her sexual currency to be either capitalized upon or shifted in acknowledgement as your humiliation needs.

Can girlfriend be shortened? GF Geef Gif Jif Fig FEEG Jef. Ah Jef is sort of like Jenf, which is also sort of like Jennifer. That's too many syllables for her appropriate amount of hoit-toitery. So Jen it is.

How's your relationship with Jen going?