Looking for an old [FM] story

Long shot, but maybe you can help.

I’m looking for an old post called something like “what I heard upstairs”. One of the hottest pieces of literature I’ve read here, but can’t find it, possibly since it’s been deleted.

It was about this college guy coming home for the weekend or holiday with his friend (called Mike I think) and staying the night at his cool aunt’s place. She ends up getting high with them and banging the friend, which the author wakes up to hear in real time but doesn’t confront them. The next morning they all act as if nothing happened, but in the car back to college he tells his buddy he saw them together and it’s all good.

Rings any bells?