Or you of osmosis.
The movement from of thick to a thin solution through a semi permeable membrane.
I am familiar with osmosis. I also realize it takes some time for material to pass from the area of high concentration to the area of low concentration, and when high surface tension is involved it takes even longer. With a high enough surface tension it may not even occur. High sustained pressure on the low concentration side will speed up the process, but enough pressure to affect the process would blow out the condom.
Now, I don’t know about your habits – but I generally removed the condom rather quickly after use.