Rather than femdom titles like the DMOW compilation I pointed to previously, I’m finding the “caught by mother-in-law” theme more interesting for face slapping, even if there’s very limited face slapping - titles like HND-967 cited above, but also JUQ-158 (admittedly not among Yumi Kazami’s best work), JUQ-709 (Hojo Asahi is particularly good in this one), and JUQ 343 (Yuka Tada is very convincing in her role - this one prompted me to start to collect her videos, she’s one of my new faves). In all of these, the mother-in-law confronts the cheating husband and asserts control over his misbehavior by persistently draining his balls.
I guess this is more ejaculation control than face slapping, but the disciplinary corporal punishment (limited though it is in the titles I’ve cited) is pretty entertaining to me. Can anyone point to similar titles?