Harry Potter and the Connubialis Hex/Hogwarts Express/Neville, Luna and Romilda/Wait for his hard-on to pass
From Create Your Own Story
Harry never knew if it was intentional or not, but Romilda stretched her upper body, bringing her bust forward, showing it in all its glory. Her legs opened a bit, offering a glimpse of her red lacy panties. The sexual tension was driving Harry crazy. If he was alone with her, he'd probably be able to do her without the help of any spell.
He discreetly grabbed his wand without the others noticing and sweeped them, saying "Connubialis!". They stopped talking as if time just stopped. Then Romilda smiled at Harry.
She got off her seat and kneeled between Harry's legs. Harry bent over to kiss her, only with his lips at first, and then with his tongue. She was rubbing his thighs, leading her hands near his groin with each stroke, before putting them directly on his hard-on. She caressed his length, his cock pulsating at the rhythm of her movements. She knew he wanted more but she hesitated.
"What's wrong?" Harry asked.
"Someone could hear us." she said. Harry took his wand and pointed it at the door. "Muffliato!" That way, anyone coming at the door would only hear an annoying buzzing sound. He looked back at her and she understood that the problem had been taken care off.
Beside them, Neville took his gaze off the couple and looked at Luna. She looked back and her eyes deviated between his legs. She could see his penis pressing against the inside of his pants. She bent forward and put her hand on his lap. Neville followed it as it climbed up to his bulge. He lifted his head to look at her blue eyes. They both smiled at each other.
Romilda had freed Harry's member. She gave him an approbative smile. On the corner of his eye, he could see Luna caressing Neville's erection over his pants.
What will Harry do?