I couldn't believe that Michelle's pussy was still so tight even after being fucked by Dave. As I ate her out knowing that it was my own sons cum running down my throat only excited and turned me on more. Meanwhile I could hear Dave's heavy breathing as he stroked his flaccid cock, I couldn't wait for him to be erect again, I desperately wanted his hard cock filling my wet pussy, and shooting his cum deep inside me. I wanted to have his cum fill my pussy as I ate out Michelle's sweet pussy.
Dave and Michelle have been dating for a few years now; at 22 this is considered a long term relationship. Michelle and Dave are old high school sweet hearts she too is 22, so how did I at 40 end up in the situation of eating cum out of my son's girlfriend? Well short answer is that is a birthday present.
I have looked after Dave as a single mum for many years, Dave's father Mark and I split up when Dave was 6, Mark was involved in Dave's life until he turned 16, Mark just stopped making time to see Dave, Dave was understandably upset, however this made our relationship stronger. I was the main adult figure in his life, I made a point of being open with him and encouraged him to be open and truthful with me, at times it was hard, with talks about wet dreams and other male things, but we got through them okay. This dynamic of this openness changed after he turned 18. At this point Dave and Michelle became sexually active and Dave started to ask very awkward questions regarding 'G' spots and contraception even questions about girth and length of a penis.
At first I didn't know how to react to his questions, but I fumbled through them and gave the best advice I could, after a while I became proud that I was able to share such a candid relationship with my then 18 year old son, I'm not sure many other mothers, let alone fathers share the same relationship with their kids.
I guess that it was inventible, seeing we, as adults, shared intimate and personal sexual details that the dynamic would change. It wasn't long before I looked at Dave in less of a motherly manner. Dave became more involved in my sexual fantasies, after each orgasm I felt guilty having mentally defiled him, but the orgasms were so satisfying that it wasn't long before I put these feeling aside.
When Michelle started to stay over longer and more frequently I knew what was happening, in fact I can say with some authority that I taught or at least advised him whatever moves he was trying. The urge to see how my 'student' was going got the better of me. I would wait silently in my room, until they thought I was asleep and begin to fool around, I would creep up to the door, and if it was ajar I would catch glimpses of them in various positions. If the door was shut I would listen to the moans through the door. Then I would retreat to my room and masturbate.
It wasn't hard to see why Dave was infatuated with her, Michelle is a petite little thing standing no taller then 155 cm with shoulder length light brown hair, she has a tan complexion and dark brown sultry eyes. On her tiny frame her B cup breasts match perfectly, so high and bouncy. Not to dissimilar to myself at that age, I'm a little taller at 160 cm and I certainly don't have the trim figure now, I'm not overweight but have a little extra curve. My breasts are a C cup, after giving birth to Dave they grew and stayed, I wasn't unhappy about that. I have dark brown hair just above the shoulder, blue eyes and pale white complexion. Dave is the tallest at 168 cm and is fairly active so he has a nice frame broad shoulders flat abs and a nice tight looking bum. Dave has short brown hair and blue eyes, he and Michelle make a cute couple.
With Dave and Michelle in a series relationship for a few years, Michelle and I grew closer, and it didn't came as much of a shock when she came to me seeking advice, I was however taken back by the nature of the questions. It seemed that Michelle and Dave had talked and they were interested in brining a third person to the bedroom, and Michelle had planed on it being a surprise gift for his upcoming 22nd birthday. Michelle was looking on advice on her feelings and emotions towards females as well as anxiety in having to share her boyfriend with another woman.
I opened up to Michelle and explained that I consider myself to be bi-sexual, in my youth I experimented with other women and have had a number of relationships with woman since my divorce to Dave's father. I explained that at first I shared the same anxiety as she has. It felt good to be able to really open up with her, I considered her one of my own and now being able to talk with her like this felt like we had taken massive steps towards her becoming a part of the family. Michelle listened intently as I talked about my experiences and feelings.