My ex's mother

A few weeks after my gorgeous but very unfaithful GF dumped me quite badly, I bumped into her mum at the corner shop. She started to apologize for her daughter's outrageous behaviour but I stopped her as I didn't want the information to go public and invited her back to my place for a cup of tea instead. As soon as I closed the front door, she confessed she let her 17yo daughter go out with me and stay at my place every week-end because she sensed I would be a good sex teacher to her and admitted I turned her on too. To prove it, she took my hand to lead it to her very wet crotch soaking her knickers. Without second thought, I dropped to my knees to bury my head between her legs after lifting her skirt and let her sample my oral skills, her daughter told her about. The little bitch also said I just loved to drink pee and her mum did test that too. Very impressed to see it was true, she wanted to thank me with a blow job but was quite disappointed by the size of my limp cock planted on my smooth crutch. She unsuccessfully tried every trick she knew to have it hard before inserting a finger into my so well open ass that she ended with half her forearm in my belly before getting any promising result... Fisting me hard, she had a loud shout when she saw my cock let out an endless stream of cum and piss before heading to her sexless marriage. The following week, I had the surprise to see her ring at my door to tell me she had an urgent need for a pee. Noticing she shaved her twat, I was only too motivated to lick and drink. Those weekly meetings lasted for the two years previous to my trip to the UK where I met the woman I married 26 years ago...