My boyfriend wants me to sit on his lap but I am afraid I will be too heavy. It's not that I am fat, I am just very self conscious about my body. I am 4'11 (I KNOW IT IS SHORT) and he is 5'7. I weigh about 100 pounds and weighs about 130 pounds (he is really skinny and has no fat, just muscle). Should I sit on his lap or naw?