Some Alex In Wonderland rough concepts for how the Tweedles will look. They are a sorta shapeshifting duo that can merge together, split apart, transform, or even absorb folks into them and push them out whatever kinda area of their body they want.
1-General design
2-Merging at the hip to shove Alex inside them
3-They open their mouth to reveal Alex's face, and the other starts making out with him.