Can a girl hold a heavier guy on lap for a long time?

Today while watching a movie with my friend, just jokingly I sat on her lap. She just giggled a bit and let me sit there. Well my weight is around 135 lbs and her's is around 100 lbs. After some 15 mins I asked her, is your leg not paining. She said no you are not that heavy, I am fine. We almost watched entire movie with me sitting on her lap. Later I complemented her that you are really strong, I had never expected you can hold me for that long. She again giggled and said yes I am very strong. Though its a fact, I still cannot believe a girl can hold a guy who is almost 35 lbs heavier on the lap for such a long time. so I am just curious to know are there girls who can hold a heavier guy on lap for long time. I request you all to take it lightly and share your experiences and opinion
Can a girl hold a heavier guy on lap for a long time?
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