Providing proof

"Are you serious?" Imogene's voice was loud in the van.

"Very. My girlfriend knows I'm a slut." Charlotte smiled. She was very close to Imogene now, who hadn't pulled away at the most recent approach. Imogene, for her part seemed to be completely captivated by Charlotte. I saw her shudder slightly as Charlotte's fingers brushed against her knee.

I yanked my attention back to the road, trying to remember where the cabin's turn off was. The conversation in the back seat was muted, but I occasionally would here a slight intake of breath or an embarrassed giggle. Finally spotting the turn off, I slowed the van, taking the opportunity to glance back and see Charlotte whispering something into Imogene's ear.

"Ok, no way that's happening..." Imogene pushed back from Charlotte with a start.

"Oh, so you aren't a slut then..." Charlotte laughed, leaning onto her elbow which she had propped on the seat. "So, which is it sweetheart? "

"You're just... confusing me now. " Imogene blurted. She seemed rattled once again.

"What's confusing? You're turned on. I'm Turned on. " Charlotte spoke quietly, "We're going to be spending days together, and you know you're going to be hearing people fuck..."

"I'm trying NOT to think about that part," Imogene breathed out.

"Yeah... how's that working for you?"

It got very quiet. The sound of the engine and the ocean was all I heard. For a long second, there was no speech at all in the van. Then, a muffled yelp of surprise, followed a few moments later by a ragged inhalation that I recognized as Imogene's.

I glanced back to see Charlotte's hands all over Imogene. Imogene hadn't pushed her away, and she breathed heavily, not even glancing in my direction. I have to admit, at that moment, I was absolutely astounded by how fast she had gotten my little sister to... I glanced back again, and swallowed heavily as I saw Charlotte's lips come down on Imogene's for a kiss.