i double crossing my legs all the time. i just feel so comfy doing it :x not sure about blood circulation or so. i don't tend to keep one position for long.
i worked in fashion so i believe crossing legs have to do with a good posture. you kinda lay your lower leg a bit further away in a relax way, so it'll look more natural, and loosen up your muscles. it'll be better to lean your upper body to the other side of your crossing legs. if i cross my legs to the right side, i'd lean my body a bit to the left.
barbie :OO you look great. wow, i just learned something new. lol. i have no idea that sitting position is called lotus position. lol. it's just what we sit and meditate a lot where i'm from. we don't even have a name for it, it's just how we sit.
in my culture, we say it's not how you do it, it's how often you do it. doesn't matter if it's the right way or not, if you do it often, it'll feel natural and boosts your confidence