I used to do BJJ and really depends where the thigh's are placed. If it's blocking your wind pipe, 15-30 seconds normally, give or take for you to lose conscious. if it blocks the carotid arteries, instantly to 5 seconds is how quick it would be to lose conscious. Just google ''How to escape triangle choke'' and you'll find your answer
How quickly could her thighs knock me out if she wrapped them around my neck? Would there be any chance of escape?
John Ramirez