All the characters in this story are over 18. It is set in England, so the words used are English not American. And this story continues after Heather Chapter 5...
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The next week came around as a sunny day - it was springtime now, and I rang the bell expectantly, clutching my secret bag in my hand. It took a while for Heather to answer, then she came to the door, beaming as usual.
She wore her white cable-knit cardigan and knitted plain brown skirt.
"Hello pet, I'm glad to see you are punctual for your lessons! Have you brought my nice black cardy back?" I showed her the bag, as she shut the door behind me.
"You can follow me upstairs this time, as I've locked up already!"
So my eyes were glued to her skirt and the rounded swelling of her bottom as I followed her up the stairs and into the back bedroom.
"Right," she said, "let's have your clothes off please and this week's lesson can begin."
It still aroused me amazingly, even after all the things we'd done before, just to strip off in front of a fully-clothed woman. Especially one covered in tight wool, and old enough to be my mother. And one who kept staring at my body, and smiling to herself.
Soon it was just my underpants that were left.
"Yes, them too - I want you naked before the lesson can start."
So I slipped off my pants, and stood up straight with my cock rising strongly in front of me.
"That's one thing about you - you are a very keen pupil aren't you. I think my Ken could learn something from you."
She came up towards me, reaching out her hand to squeeze the base of my cock, the other hand running up the shaft to the tip.
"I think you're as big as he is too, and much firmer." She said, almost to herself. "I wonder if your mum knows what a beautiful cock you've got. Has she seen it this big?"
I was embarrassed by her question, as only the other week I'd been in the bathroom, drying myself after a bath, and then quickly getting myself going with Heather's cardy when I'd heard footsteps outside the door. I'd managed to hide the cardy, but was stark naked and fully erect when my mum had come in. She'd looked at me, and said a quick 'Oh, I'm sorry' before going out again. But she'd looked at me a bit different afterwards, although she'd said nothing.
"Well," I began, "She did come in the bathroom last week, when I was tossing myself..."
"Were you using my cardy? Did she see it?" asked Heather, quickly.
"No, I managed to hide it before the door opened, but I was stark naked, and hard."
"The lucky lady!" smiled Heather. "I thought she might have, because I happened to mention the other day how you were growing up into a fine strong man, and she said 'he certainly is' in a funny sort of way."
All though this conversation, Heather had kept her fingers on my cock.