He was taking another late night stroll. He had always had trouble sleeping, but it had been even worse after the events of last May. One would think that he finally would have been able to rest in peace, now that he was his own man, but alas, no.
So when everybody else went to bed, he went out to walk the grounds. It relaxed him - nothing more to fear - nothing more to hide from. He could just be himself.
Usually, he walked near the edges of the Forbidden Forest and by the quidditch pitch, but this night he choose to walk by the lake. He was pondering his new life when he heard splashing noises from the lake. Usually the merpeople didn't come this close to the castle, so he changed direction and walked towards the lake to investigate.
He took pride in being extremely difficult to catch off guard, but he was not prepared for what he saw in the lake this moonlit night.
She was standing in the lake near the shore. The moonlight made the surface of the water glimmer and cast an almost ethereal light on her. She was standing with her back towards him, but there were no doubt at all that she was not a girl anymore. What he was seeing was very much a woman! Amble hips, a narrow waist and he caught a glimpse of a breast - and it made his cock harden faster than he was comfortable admitting - even to himself.
He had been celibate for almost his entire life. There had been a few encounters, but only when it was needed in the line of his duty. He used to tell himself, that he didn't have physical needs except for a quick wank here and there. But at the sight of her, standing naked in the moonlight, he realised that he, indeed, had needs.
She walked out in the lake and swam for a bit, while he was standing flabbergasted and just stared at her. She was so peaceful and the sight of her filled him with warmth and ease.
But when she rolled over in the water and lay floating on her back he lost his breath and he could feel the blood rush from his head to his groin. All he could focus on were her breasts. The moonlight reflected in the water and made them even more beautiful. The nipples were hard and all he wanted was to taste them, to let his tongue flick the small buds and gently bite them.
He was lost in his own thoughts for a while and when he looked at her again, her hand was fondling her breast and she was rolling the nipple between her fingers. He groaned and without even thinking his hand was grasping his cock through his pants. He was so hard it almost hurt. He quickly unbuttoned his pants and took his cock out. He let his thumb glide over the swollen head and covered it with precome. As Hermione let a hand down to her cunt his hand was moving slowly up and down the shaft, while he fought to keep quiet.
Suddenly Hermione was getting out of the water and he got the first full view of her body. She really was beautiful and oh so sexy. The water dripping from her hair, the full breasts with their very hard buds, her swaying hips - and her glistering pussy. She was so enticing - he couldn't keep his eyes from her, but just kept on letting his hand stroke his leaking cock.
She was so close to him, that he could hear her drying herself. He noticed, that she took her time with her breasts. He really ought to get away from there, but he was transfixed by her body - he couldn't move even if he wanted to.
She laid down and started touching her stomach and her breasts. Moaning she spread her legs. He couldn't breathe. He took his balls in the other hand and rolled them, while he tried very hard to be quiet. Surely she would hex him to kingdom come, if she discovered him. He felt like an old leech but he couldn't tear himself away from this beautiful sight.
When she started fucking herself with her fingers and pinching her nipples with the other hand he could barely suppress a groan and his own hand began working faster and faster. There were no finesse - just hard and quick movements. He fought to keep quiet, even though he was so hard and so turned on as never before. He imagined how it would be to bury his cock in her sweet, sweet pussy. To hear her moan under him. To feel her nails on his back as he was pleasuring her. He almost buckled at the thought.
He was so close now and apparently, so was she. As she moved her other hand between her legs to touch her clit she came with a shriek. When he saw her gorgeous body writhing from the orgasm he came as hard as never before. Long streaks of milky white cum covered his hand and he couldn't suppress a sigh.
At the sound she sat up and looked around. He stood as quiet as he could and luckily she didn't investigate further.