I was wearing a condom, so I came
inside the condom inside of her.
As luck would have it, when I got home, I decided to test that condom. Just in case. I filled it with water to the point it looked like a balloon. I inspected the condom closely for several seconds and found no leakage, breakage, tears, scratches, or anything else.
I then decided to abuse that condom and see if it would expose hidden leaks. I swung that condom around several times, which stretched the latex *significantly*.