Why do some women have soft skin like blubber and some women have smooth skin?

this is a sincere question. somewhat recently, i was with my mom. i touched her arm. suddenly i felt woozy, because her arm was so soft. she is not fat, but it was blubbery and it made me feel faint. i felt kind of like how when someone scrapes a chalkboard.
recently, i touched my sisters arm. she is not fat, but her skin was so soft and blubbery. when i touched it, i almost passed out because i felt sick at how soft it was. it made me feel weak. and i wondered if she was sick or dying?
both time i felt my arms afterwards. my arm is so smooth and dense.
i work out a lot. would that have something to do with how dense my arm mass is? i am not a muscle woman however. i dont look like a gargantuan muscle lady.
when i touched their arm i got kind of seasick. do you think maybe i felt intuitively that they are not healthy? or do some women just have soft blubbery arms?Why do some women have soft skin like blubber and some women have smooth skin?
I don't know but I think touching hard bodied men will probably help you feel better lol
its because they dont work out. instead of having some muscle like you, they have no muscle and instead fat.