(Concern) When I sit cross-legged and stand up, my legs don't straighten well.

I usually put one leg on my dad's leg while eating lunch at the cafeteria.

When I try to stand up, my legs don't straighten properly.

So, I'm just pounding on the pelvisㅜㅜ

What could be the cause of this??

The solution point is that I understand not to sit on dad's leg, butㅠㅠ

Still feeling uncomfortable suggests there might be some problem somewhereㅜㅜ