At first I thought that the grandfather would die at the end of it, but it turned out to be the opposite: he fucked the poor girl and poured a bucket of sperm in her pussy as well. Of course practically all the work the girl did by herself, but grandpa was also on top of it: at that age many of them can't get a hard-on at all. The girl sucks amazingly: swallows the whole cock without a problem, I would fuck her myself!
Seeing that the guy records it on camera - her girlfriend tries even harder. In addition, she wants to look even prettier - she fixes her hair, makes eyes, smiles. Knowing that the guy will show this video to his friends, she wants to impress them as best she can. Female logic!