This is what happened in the next three weeks, told by Jack.
-----
Shit, it's nine already. I checked my watch again then groaned, I was going to be late, very late. I closed my eyes, when I opened them I laughed.
"What's so funny?"
"Hi sis, I didn't realise you were in the bathroom." I smiled to myself then said "I thought it was Monday."
"It's Sunday." She then added, in a mocking tone, "You are doing an advanced computer course and you don't know what day of the week it is?"
I ignored that and said "Come to bed."
"Can't, I have too much to do. If you fuck me now I will just go to sleep afterwards and waste the morning."
I was trying to think of something to say that would persuade her when she opened the door and popped her head in. I put on a miserable face.
Smiling she said "Nice try, but it's a no."
I gave a fake groan then said "OK, but will you change your mind about not sleeping in my bed tonight?"
"No." She then added "I sleep better on my own."
When she went back into the bathroom I closed my eyes, there was now no rush to get up. I thought of what we had done together last night. We had three weeks left to do the same again, and more. I felt my cock stiffen but I kept my hand away from it, I needed to save it for Jill. We were going to have plenty of time together so we could do what we wanted when we wanted. That was my last thought as I drifted off to sleep.
When I eventually got up I had a leisurely shower, then I went down to the kitchen, there was a note on the table. It was just about readable, she had obviously scribbled it in a hurry. It said 'Will be back about nine. You will have to sort yourself out for food." I was disappointed, I was hoping to spend the day with her. However it would give me time to study without any distractions, and if she got back when she said we would still have time for some fun before bedtime.
I checked my watch, Jill would be home soon. I smiled and then stared at the page again, it was a difficult topic and I was struggling to concentrate. I was debating whether to call it a day when my phone rang, it was Jill.
"Hi Jill, everything OK?"
"Yes, just hold on a minute."
"Sorry about that, was just speaking to mother."
I was confused, "Where are you?"
"I went home to see mother and father."
I interrupted her with "Are you still at their place?"
"Let me finish." She sounded irritated.
I could hear a sigh before she continued with "Mother is coming to stay with us for a few days, I am now driving back with her."
"Why?"
"It's complicated, I will explain when we get in. We have stopped for some food. It's going to be at least another two hours before we get back."
"What's going on?"
"Please Jack. I am tired and it's been a long day."
I wanted to say more, but I just said "OK."
There was quick thanks from Jill then she ended the call. I closed the book and rubbed my eyes. First a hurried note on the kitchen table, then mother in the car, very strange, but I would just have to wait until they got here for an explanation.
It was just after ten when they arrived. I heard them outside, then there was a knock on the door. When I opened it Jill was searching for her key and mother was behind her.
"What took you so long?"
"Sorry sis. Hi mum, how are you?"
Mother didn't say anything. I looked at Jill and she mouthed 'No'. I still had no idea what was going on but I heeded the warning, without saying anything else I gave mother a big hug.
"She is going to sleep in the box room, I am taking her there now." As they walked past me mother said, in a weak voice, "Jack please get my suitcase from the car."
I nodded, then I went to get her things.
The bedroom door was closed, I could hear Jill's voice but couldn't make out the words, I hesitated before knocking.
"Thanks, just put it in the corner. Make me a coffee, I will be down in five minutes." Then she added "Mother doesn't want anything."
I waited in the kitchen, Jill's coffee was getting cold. When she did eventually join me I could see how tired she was.
"It's almost cold, do you want me to heat it up?"
"No thanks." She downed it in one, after wiping her mouth with the back of her hand she said "I suppose you want an explanation?"
I was tempted to give a sarcastic reply, but I could see she was not in the mood, instead I just nodded.
She gave a long sigh then said "I got a call from mother this morning, she was in a right state. She said she was leaving father. I asked where she was going to go, but she had no idea, she just wanted to leave him. Eventually I calmed her down and persuaded her to come and stay." She stopped then shrugged her shoulders. The meaning was clear, 'What else could I do?'.
"You did the right thing."
She gave me a weak smile then said in a low voice "I was so looking forward to." She didn't complete the sentence.
I held her hand and said "Me too." I then repeated what I had said before, "You did the right thing."
For the next few days it was all mother and Jill. They seemed to be talking a lot, I wasn't excluded but I could see it was all mother and daughter stuff so I left them to it. However I was getting frustrated, I needed some special time with Jill.
Thursday was going to be a busy day for me so I set my alarm for seven-thirty, but I was woken before then by knocking on the bathroom door. I was still groggy but managed "Come in." Jill was wearing a short nighty, that got my attention.
"If you hurry up we can have a quick one in the bathroom before I need to leave for work." Then she added "And before mother gets up."
She didn't need to ask me twice. I wanted to lick her but she said we didn't have time. However I did get five minutes on her big nipples before she urged me to fuck her. This time she was on her back and I was pushing her legs up high. I had a great view of her cunt. I was just getting ready to enter her when I heard footsteps in Jill's bedroom, she must have heard them as well because she froze.