I wonder if he fucked her all the way and came inside of her.
I know a condom was worn (Bummer!?) but it looked empty when he pulled out? Ending was cut short.
When I first started fucking my wife's Sister, I had to use a condom so I didn't get her pregnant. I HAD to pull out of her when I was cumming because I felt the condom had torn. But since then, I am now fixed and I can cum Inside of her fully. I love that. <3