I feel like her tits just couldn't be the problem on their own, unless they weigh a lot more than human breasts would at that size. Then again I suppose Lorem's physical strength might be set aside for momentary joke purposes like "Isn't it your huge honkers?"
My joints pop more easily than others to the point that I can pop them even when moving normally. I can pop unlikely spots like sternum. I tried to get a massage and both massager and I wondered if I was getting chiropractic treatment. One of example was how my spine keep popping when he pressed down on them.