"Isn't this a little sudden, Lav?"
Lavender Brown shook her head vigorously, flinging dirty blonde locks about in the process. Her girlfriend got a face full.
"Gah! Sorry, Vati," Lavender said, face contorted in what was meant to be an apologetic smile. "But no, not really. It's been like, a year. And we've known each other forever. It's meant to be! Um… Should I get down on one knee or something?"
Parvati Patil shrugged. "Oh, I don't know… I don't think I've ever seen a movie like this. With a girl and a gi-"
"You and your movies!" Lavender laughed.
Her girlfriend shot her a look, and the laughing ceased. Playing nervously with her own fingers, Lavender continued.
"Well, Alicia said she proposed the other day and… Katie accepted, so…"
"I know, Lav!" said an anxious Parvati. "I was there too when she told us!"
Lavender gave herself the facepalm. She used far too much force, and ended up with the heel of her palm in the eye. Smirking with a bit of schadenfreude, Parvati peeled the hand culprit off of Lavender's face.
"Oh look, you're making this difficult!" complained Lavender. "So I have a ring, and I'll get down on one knee. And I'll smile up at you adoringly. See? And I'll… rub my knee some more in this unfortunate dirt. And the passerby will stop staring and let the lesbians have their moment. That means you, Ron!"
Parvati winked flirtatiously at the gawking Weasley. The flustered man scampered away, back probably to love of his life, Luna Lovegood. My, how things changed.
Whipping her head back around, Parvati whined, "Okay, okay. Let's cut the narration and get on with it, Lav! I'm about to say yes!"
A ring came from nowhere (summoned, actually). "Well, Parvati Nomiddlename Patil, will you marry me?"
"Yes I- Did you ask my father yet?"
Lavender's eyes darted back and forth shiftily. "Maybe…?"
Parvati groaned. "Oh, Lavender! You know that he won't if-"
"Just kidding! He's thrilled. Honest to goodness."
"Well…" Parvati allowed Lavender to slip a gorgeous ring on her finger. Lavender allowed Parvati to get down in the dirt with her (and stain her slacks) for an appreciative kiss.