Harry Potter and the Connubialis Hex/Hogwarts Express/Neville, Luna and Romilda/Let Luna finish the hand-job
From Create Your Own Story
Romilda leaned forward and kissed Luna, merging her tongue with Luna's. She brought one hand between Luna's thighs to caress her vulva. Luna's grip on Harry's dick tightened and her strokes got faster. Harry quietly moaned, feeling pressure coming from his balls. He could hear Luna respond to Romilda's stimulation and it excited him even more. He let out a big moan and sprayed his semen forward, hitting Luna's leg and Romilda's arm. They looked at him with impressed eyes and laughed. On the other couch, they could Neville moan as he came by himself.