When I was 25 I was dating Liz who was 19 and lived at home with her mum. First date was meant to be the movies but her mum was away so we ended up fucking instead. 

About 2 weeks later she invited me around for dinner to meet her mum. Highly embarrassed when we met, turns out the mum was a lady I had fucked at a party a few weeks before. I had been invited to my mates mum’s 40 birthday, got talking to her best friend Debbie, things got a bit heated and we ended up going out to the sleep out and having some fun. 

It was a little awkward at dinner and a couple of days later I get a call from Debbie asking if I could come around. I go around and she asks me not to ever ever  let onto Liz what we did. I told her I had on intention of ever telling her l that. Debbie then tells me there is no reason why we can’t continue to fool around if Liz is at work so for the next 4 months I was fucking both mum and daughter, often on the same day. And I have to say Debbie had the filthier mind and was the woman who introduced me to the joys of anal sex which I then introduced her daughter to.  Very fond memories.