Dorei Mama Jusei Kyouiku ~Tomodachi no Hahaoya Choukyou~

A son and his friend played video games during summer vacation.
Soon his mother slid into the bottomless abyss from her
chaste place in a discovery of total sin.

At first she was only exploited to lose his virginity, but as
she drowned in lust with the friend, she became submissive...

Every hole in her body was a portal to pleasure. She made love
in obscene ways, again and again. Her womb craved his spunk.
In the end, what happened to these two...?

[From DLsite English]