This story immediately follows on from episode 6. You could still probably enjoy this one without reading its prequel, though.
Mrs Castlewick slumped back in the chair. Diana slumped to the floor, sweat beading on her forehead, her hands sticky with the juices from her headmistress's pussy.
"Thank you, Miss Mapleton," she said after a moment. "That was very fine. Very fine indeed. I am most pleased with your progress."
"Yes, capital show, simply capital," chimed in the major rising from his chair. "And by Jove you won't believe what's happened. Look! I've reloaded!"
He gestured to his groin, where his cock was jutting out past his shirtfront.
"I don't usually get a chance to get a second shot off, but that was such a damned fine display the old fella's got himself back ready for action. Any takers, ladies?"
All three women looked at each other. The headmistress was the first to speak. "Miss Appleshaw, based on your performance in class this week I am not convinced that you have a firm grasp on some of the more complex positions. I think some practice is in order. Pray remove your clothes. Miss Mapleton, help her please."
Diana pouted at Mrs Castlewick. "But headmistress, I am simply sopping wet down there and I must have something between my legs. Oh please may I fuck the major?"
"Miss Mapleton, you shall do as you're told. Your friend is not so advanced as you and needs the experience. Now please do as I have asked and assist her to undress."
Reluctantly, Diana moved over to Fanny. Once again there was unbuttoning, unbuckling and unlacing until Fanny stood naked in front of the major. Erect nipples jutted from pert breasts. Her narrow hips framed a bush as blonde as her hair, which was still pulled up into a bun. Her arse could best be described as petite. There was a spot of dried cum on her right breast, and more cum crusted her face.
"Miss Appleshaw you look ravishing!" the major exclaimed. "The best things come in small packages, ma'am if you don't mind my saying."
"Why thank you, Major, that is most kind. And I am glad you enjoyed me sucking your dick."
"You're a very plain spoken gel, and I like that!" said the major jovially.
"Miss Appleshaw," Mrs Castlewick interrupted. "I think we will practice what our American cousins call the 'reverse cowgirl'.If that meets your satisfaction, Major?"
"By all means, Mrs Castlewick. A top notch suggestion. I'll just lie down on this chaise longue shall I?" The major did so. Though he had now removed his trousers and boots completely he had left on his shirt. His erection pointed proudly towards the ornate ceiling of the dressing room.
"That's the one where I sit on top of him isn't it, headmistress?" asked Fanny as she walked over to the reclining major.
"That's right, dear. But you're facing away from him, remember. Many men enjoy the sight of their member sliding in and out of their lover, and the view of your other puckered little opening can be an added pleasure for them.
Fanny turned away from the Major Harpole, so that she was facing Mrs Castlewick - still reclining in her chair with her legs akimbo - and Diana. She shuffled backwards slightly awkwardly, straddling the chaise longue and then squatted down where she thought the major's penis would be. When she didn't feel the satisfying stretching of a cock making its way into her, she looked up at the headmistress for guidance.
"Reach behind you, Miss Appleshaw, and guide the major into you. You need to get him at the correct angle for entry, but do be gentle - it's quite possible to bend his member painfully if you're not careful."
Fanny did as she was told. The cock that she took hold of was still slick - slimy almost - with a mix of her spit and the major's sperm. She heard the major let out a breathy sigh as she slid her hand up and down it once or twice and then nudged her pussy lips with its head. Once she was sure of her aim, she sat down. Her previous exertions had aroused her, too, and the penis met no resistance as she sank down upon it. This time the major let out a moan, and she herself gasped as the whole length slid into her.
"Well done, my dear," Mrs Castlewick said. "I bet that felt good, Major?"
"My god, yes. The young filly is so tight, Mrs Castlewick. You certainly choose your students well."