Most scat clips are short. A toilet scene is filmed in one take and is over in a few minutes; a smearing clip rarely runs longer than ten. Long scenes – twenty minutes and more in one piece – are the exception, and they are almost always scenes with more than one person.
Why long scenes are rare
A long scene needs a plan, a second person or a second camera, and a creator willing to keep filming after the obvious moment. Couples and small studios do that; solo performers mostly do not.
Formats that run long
Scat sex scenes with partners, domination sessions with a slave, eating and training clips with instructions, and role play with a story. The rows for couples and instructions on the front page are the best starting point.
For collections rather than single scenes, see scat compilations.