If someone knows recreate the yellow tube, for extend the image to the left.

I don't know how one would "extent" this image to the left, but it is way too cute not to ask https://www.pixiv.net/member_illust.php?mode=medium&illust_id=63261026
Catgirl knight twins! Possible to replicate the wallpaper on the left? https://www.pixiv.net/member_illust.php?mode=medium&illust_id=26425872
The tail is really well drawn, not just protruding from the butt.

also this catgirl http://www.zerochan.net/274390
Kiho said:
Catgirl knight twins!
I'm pretty sure it's her reflection.

I guess it makes sense for the tail to start fleshy like that, if it was more furry it would be perfect.