I remember seeing awesome video, basically a guy comes from college or school and sees his mom wearing black stockings and lingerie, they talk then they start fucking, she says he will get more if he does well in his exams/tests.
In the end also - she tells him: "Should've came inside me" guy replies: "Didn't want to make you pregnant"
The start scene is in living room of house.
P.S - Pic not related.
Sounds like Kerri Lynn