After our first session of fisting and blow jobs that afternoon, mother and I spent the rest of the day kissing and cuddling and we prepared and had dinner and cleared away afterwards. My sister Alex called me from university, asking how mum was and what we had been up to, I couldn't help smiling, and then we chatted generally about what I was doing at college and if I had decided to go to university in September (I had been quite indecisive about my future plans) and she was telling me about her university antics and lack of boyfriend (on which she commented in almost every telephone conversation we had) and I gave my usual reassurance that it was only a matter of time before she found a nice guy.
When mum came into the room I passed the phone to her and while she chatted to Alex a compulsion came over me and I knelt before her and undid her jeans, revealing her cum soiled panties I had pulled aside earlier to finger and fist her welcoming cunt. I pulled the jeans down while she continued chatting on the phone. Then I pulled down her panties, revealing her shaved pussy and inviting labia lips. Mummy hadn't washed since I fisted her that afternoon and I could smell her desire, a pungent musk that I was immediately turned on by. She had not resisted physically but seemed rather flustered as she looked down at me and continued the conversation with Alex. I continued undeterred and buried my face in her pubic delight and caressed her musky clit with my tongue. Mum let out a stifled gasp as my tongue began to caress her holy of holy places and she had to make up an excuse to Alex.
"Oh, I nearly knocked my tea over." She said as casually as she could.
But mummy started to shudder and tremble as my tongue became more urgent and and assertive in it's exploration of her G-spot. Still she carried on the conversation with Alex until it was time to say goodbye. With the conversation over, my mother surrendered fully to the oral pleasure I was providing. Her breathing became heavier and quicker, she sighed and began to speak to me.
"Yeah baby, just there! You know your way around a pussy don't you! Ooh that's so good, lick mummy's cunt!"
My phone was still in my mother's hand, that was now also caressing my hair and the back and side of my head.
Suddenly, I heard Alex's voice. "What was that Mum?" She said, right next to my ear as I was lapping nectar from mum's cunt. Mummy had not ended the call and neither had Alex
I was startled and pulled back and grabbed the phone from my mum's hand. Mum looked horrified.
I spoke into the phone. "Hello? Are you still there? Mum was just handing the phone back to me to say goodbye to you"
"What was she saying? I didn't quite catch it. Is she okay, she sounded a little breathless." Enquired Alex.
"Yeah, she's fine. Oh she was asking me to ask if you if you're coming home for the Easter break?" We were just talking about doing something different during holiday, given the new circumstances." I thought it best just to distract from mummy's dirty talk. I really hoped Alex had not heard, but what was done was done.
"I'm not sure what I'm doing yet, what did you have in mind?" she said
"We haven't given it any proper thought yet, we thought we'd wait and see what your plans were." I replied.
Alex continued. "I'll give it some thought, maybe we should do something as a family, or what's left of it. If I come home at the weekend we can talk about it, make a plan maybe?"