How come? My thighs and hips are pretty stiff but I can still sit and sit well in full lotus.
Anatomy? Open hips? Are you sure you are assuming the proper position?
I think I sit correctly. I’ve gotten better at it over the years and the position is quite comfortable for at least 20 minutes.
For some reason it seems easier to get into it and keep the position a longer time in the mornings.
Bending the knees the other way is very hard for me, so it’s probably just something with my anatomy.
There are three possibilities.
The first is that the pose is not being done correctly.
The second is that external rotation of the hips - one of it’s eight movements, is very open.
The third is that in sitting in the pose the ligaments of the knee are taking the brunt of the opening (not the hips) and that over time there may be laxity in that joint, instability, or damage. But I simply could not choose one of these from the information provided.
Of those three the second is of course sounds like the best option 
I’ll try to investigate it further see what I come up with.
What infromation would help you, aside from a video clip of me doing the asana (which isn’t about to happen ) ?
Terje – you say that bending your knees the other way is harder. Which way do your knees bend when you go into lotus?
It’s more the thighs actually, right. They go in when you sit in lotus and out for virasana for instance. I have a friend who can sit down on his butt with his knees together and his feet pointing our, my legs would break if I did that.
You can sit in lotus position by practice only.
Guess not, because I have always been able to, without any practice. It’s gotten easier over the years, with practice, but while I still sometimes have a hard time reaching my own toes I have always been able to sit in full lotus.
[QUOTE=Terje;31153]How come? My thighs and hips are pretty stiff but I can still sit and sit well in full lotus.[/QUOTE]
Muscle retraction isn’t symmetrical, neither is it found in every muscle group. You can have very elastic external rotators and be able to it on a proper lotus but very poor contracted isquitibial muscles or crural biceps which would prevent touching your toes.
Doing specific exercise for stretching specific muscles will do the trick easily…
[QUOTE=Terje;31243]…What infromation would help you, aside from a video clip of me doing the asana (which isn’t about to happen ) ?[/QUOTE]
What you ask about is done through assessment. A sound teacher uses various tools through asana and instruction, contraction and release, mobility and stability, to see what the nature of the student is. From that gathered information the practice is molded.
What is Baddha Konasana look like in your body (not an experiential but rather an anatomical question)??
[QUOTE=InnerAthlete;31335]What is Baddha Konasana look like in your body (not an experiential but rather an anatomical question)??[/QUOTE]
I have quite some way left to go before my knees reach the floor.