Okay lets be real

Actually tbh, they are indeed identical twin but since they are of opposite genders. It's bound to happen where the male twin will out grow the female twin. I have seen many twins of opposite genders, where they looks exactly alike when they are small but when they reach a recent age especially the male twin. They start to look a bit different, height wise cuz of growth spurt and the body type, female starts to grow in their breast. For in this case it didn't seem like the male twin grew that much just a bit in height and since the male isn't much active he has a more leaner type body vs the female twin who is more active so she has more muscular type body. Not all identical twin of different genders grows up to looking the same.

Like I said, they are not identical twins, just twins. Identical twins are born from the same fertilized egg, which thus divides to form individuals with the same DNA. Thus, they should be of the same sex. I think the twins in this case could have been drawn as the same length at this moment in their lives. A male twin might grow taller than a female later, but during cheating it could be different. I didn't say that they couldn't look the same in terms of face and body structure.

nope, you can only have identical twins of the same gender, since they originate from the same fertilised egg. Twins like this, with seperate genders, come from two eggs being fertilised at the same time.

Not really cuz my daughter was a identical twin with her twin brother. From one egg when I saw the doctor when I got their gender check and I got both genders but sadly only my daughter survived during my pregnancy and I lost my son. But it's possible to have identical twins with both genders

For a love of god! It is very very VERY rare that the xy chromosome of identical twin is changed to xx and I am not even sure if there are even medical articles or reserch about the subject but they are not classified as identical twins in that situation. The terminology is what is important here.