Cavity filling 

Knocking someones front teeth out and fucking the hole

Oh man did you see that Greg gave Amanda a cavity filling? The poor girl got $4 from the tooth fairy.

Cavity filling by Nastyasseater May 7, 2018

Filling a cavity 

Using a toothbrush on a girl as a dildo, as she is about to orgasm jam an open bottle of mouthwash down her throat and throw the body into a dentist office parking lot.

Dude! Sara is dead!!
I know last night... last night i was filling a cavity if you know what i mean.
NICE!!!!

Filling a cavity by SHSXC October 28, 2011