'Miss Weasley' he smiled at her.
'Sirius' she tried to stop it but his hand was on her leg, steadily going upwards, she knew it was wrong but she wanted him so bad. At that moment she didn't care that he was her fiance's godfather. He moved his mouth towards her's whilst slowly unbuttoning her blouse, she moved her hands towards his belt and unbuckled it pulling his jeans down to reveal his black silk boxers then going to pull his tee-shirt off. After he had finished with her blouse, he pulled her thong off from under her skirt, then removed her bra with his teeth, Finally he pulled her skirt off leaving her totally naked in front of him, oh god, now he knew why Harry loved her so much. She pulled his boxers off to reveal his erection. She cupped it in her hand and moved her body until her mouth was level with his cock. first she pumped it for all it was worth then she licked the tip, 'Oh God! Oh ye Gin!' he moaned. Then she pulled away teasingly, 'Gin, Don't' she moved upwards and kissed him fully on the lips. He guided himself into her body, Oh god it felt good, it had been so long since Harry had pleasured her like this. They moved together, and came together. 'Oh Gods! Oh Siri, More!' she screamed. It was over moments later but it was the best shag either of them had had in ages.
It was the first of many such meetings until one day... 'WHAT THE HELL?' Ginny was lying on the bed with Sirius inside her, they both looked up in shock to see Harry stood in the doorway. 'Harry' she started but he'd already apparated.
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'What? They were actually shagging?' Remus Lupin asked. Harry nodded tears streaming down his face. He had been betrayed by the two people he loved the most. After a while Harry fell asleep, Remus carried him to bed and put a spell for dreamless sleep on him. Then he went to find Sirius. 'How could you?!' snapped Remus.
But before Sirius could reply they were interrupted by Ginny, 'I can't find him anywhere!' she sobbed.
'He's at mine.' said Remus 'Now tell me it was a one off.' neither answered him. 'oh god' he muttered. 'But why? How?' he asked. Sirius got up and left while Ginny, crying too much to talk, drew a strand of memory from her forehead and placed it in the pensive on the work top. Lupin looked curiously at her but after she nodded he dipped his head into the pensive. He saw how the affair had started, with Harry being away so much, he then saw them screwing for the first time. Ginny noticed him stroking his crotch. 'Oh wow she's hot,' he thought to himself, when he reached the part where Sirius licked Ginny out his strokes were getting faster and faster, he was even moaning! When he finally pulled out of the pensive Ginny was stood before him in just a bra and thong. And that's how Harry, having come to forgive Ginny and try again, found his fiance and his ex defence against the dark arts teacher, shagging on the dining room table.