Becka's secret shocks and excites me

"Well, I think Megan is one of the hottest little numbers in the house, and I've always had a thing for you, bro." She licks her lips and grabs my junk. "My secret is I'd love to have the two of you in a threesome. I think we'd have a fabulous time."

My jaw drops. Then I moan from her attention to my shaft. Images of the three of us jangle around my head, making me harder. All through puberty I tried to get looks at my sister naked. I was pretty successful, mostly because she wasn't particularly private about her body. I certainly jerked to the memory of her tits.