The play begins a little earlier at 5:01 when she pulls his foreskin over the head of his cock.
Then she says: “You know what I really wanna do?…<sigh>…I wanna get them in your foreskin.”
“Them” being her really long nails.
You only get 35 seconds to jerk off enjoy the lighting and framing before she sticks one - and then two - of those really long, pointy, sharp nails into his pee-hole. Skip ahead to 6:35 for wince-free footage (unless you’re a, you know, weirdo or something. 🧐)