“I dare you! Go on!” said James.
The others laughed.
“Okay, fine. When?” Sirius asked.
“Now. She’s over there!”
Sirius rolled his eyes and stood up, walking over to Gretta.

“Hey Gretta,” he said softly.
She turned around.

He looked over his shoulder and winked at James and Remus, then grabbed her, dipped her, and kissed her on the mouth.
She was SHOCKED!
“Sirius…” she said, dreamily.
“What can I say? I’m feeling a bit… daring today. What do you say? Be my valentine?” he asked, a handsome grin on his face.
“I… I… Oh Sirius, of course!” she squealed.