Series is called "A Mother Practices Total Obedience to Her Son."

[Not2srius]

The concept is that the son is a recluse and Mom, helpful woman that she is, helps by inviting her friends over, drugging their wine or tea, and when they pass out, the son comes in and violates them. Sometimes Mom even videos them having sex so he'll have a keepsake.

Hunta-484

Hunta-452

Hunta-394

Hunta-289

Hunta-244

HHF-009

 

[JAVinsight]

HUNTA-646 I Do Naughty Things With My Mom Friend Every Day Thanks To My Mother-in-law.A Mother-in-law Who Absolutely Keeps The Orders Of His Son​

HUNTA-710 Doing Naughty Things With My Stepsisters Every Day - A Reclusive Young Guy Turns Into A Sex Monster When His Parents Get Remarried! - How Far Will The Older Stepsister Go To Protect The Younger One?​

 

[Not2srius]

HUNTA-646 I Do Naughty Things With My Mom Friend Every Day Thanks To My Mother-in-law.A Mother-in-law Who Absolutely Keeps The Orders Of His Son​

HUNTA-710 Doing Naughty Things With My Stepsisters Every Day - A Reclusive Young Guy Turns Into A Sex Monster When His Parents Get Remarried! - How Far Will The Older Stepsister Go To Protect The Younger One?​

Thanks! Great to find more in the series.