Good morning, I am trying to find some information regarding sexual relationships. I am 5 ft 2in 175lb female who recently became involved with another woman. This is my first lesbian relationship. She is 5ft 6in and 435lbs. I love when we are together however there are times that I feel like I am suffacating. it often hurts when she is on top of me and it hurts when I am on her as well. She is too large for me to stratal her. Please advise. She pushed my face so hard into her breast while I was sucking it that I thought I was going to die from lack of air.