Absolutely nothing, for now

As you peel off Dana's soiled shorts and panties, you can't bring yourself to cover up that pretty little pussy so soon after revealing it. You've never seen one you would describe as "cute" before, but this one certainly applies. It's perfectly smooth, and notably pinker than the pale skin around it -- Dana's slight tan stops abruptly at her panty line.

You're tempted to have a taste then and there, but the smell of piss is still too strong. Instead, you ease your way up Dana's soft waist, teasing her tanktop up toward her tits. You pause for a moment at her belly button, planting a few kisses in the middle on her stomach. Dana's breath catches a little; you knew she was ticklish, but hadn't expected that to matter now.

You pull the tanktop over her head and toss it aside before lying down across her. Your dick is just pinned between your stomachs as you enjoy the warmth of her body against hers and the smell. The whole room smells of Dana; she'd just rolled out of this bed a few minutes before, and eighteen years' worth of long nights and late mornings have permanently infused the fabric with her scent.

Looking down at her calm, resting face, you realize just how long you've wanted this. Dana is your little sister, but she's also one of the most beautiful girls in your school. Your friends used to "forget" she was your sister and talk about her like any other girl, bragging about the things they would do to her, and you'd have to object to save face, but to be perfectly honest you'd had all of those same thoughts yourself. Dana was actually the first girl you ever masturbated to, and now she is about to be the second woman you ever ****.

You plant a quick kiss on Dana's limp lips by way of apology before lifting yourself up and lining the head of her cock with her tiny entrance. Just before you work your way in, a thought occurs to you; taking Dana's phone, you snap a "before" picture to share with David later.

Then you thrust.

You'd never believed Dana when she swore to Mom and Dad that she was a virgin, but the resistance you hit halfway in would seem to prove her point. It barely slows you down, though; you just pull out and drive through her hymen in one primal stroke.

The shock is enough to jolt Dana awake; her eyes fly open as she screams in terror and pain, but then she sees who's inflicting that pain she's more confused than anything.

"John?" she gasps, "I-- I thought you were just gonna use my mouth?"

"I was, but it wasn't enough. You're so beautiful I just couldn't help myself. I had to have you."

"I'm-- I was a--"

"I know," you smile. "I'm your first, and I'm honored. Really. It's more special this way, isn't it? Giving your virginity to your big brother instead of some random guy."

"D-David isn't some guy!" Dana protests, throwing her head back as your hand slips down to rub her clit. "I love him!"

"Right..."

You slow down and teach Dana what real love feels like, focusing more on her pleasure than your own. You keep flicking her bean as you lean down to suck on her sensitive nipple. Before very long at all, she moans your name;

"John! Oh, John, what's happening? I feel... Funny.... Down there!!!"

You smile up at Dana's face to watch as you give your sister her very first orgasm. Her nose and eyebrows are scrunched up in pleasure and her eyes are shiny with tears. Her moans grow louder and louder until all at once her voice gives out, and she just pants feebly as her whole body spasms. Then, just as suddenly, she falls limp; that one orgasm was enough to knock her out again.

You laugh so hard it almost ruins your orgasm, but the feeling of her suddenly more accommodating vagina keeps you on track. You pull most of the way out before you do though, depositing your load right at the entrance of her cunt so the jizz and blood come flowing out together when you pull away.

You take an "After" picture, getting a good shot right down her gaping hole, and send both of them to David. On a whim, you also set the "After" as her Facebook profile picture with the caption "The world's best big bro John Doe finally made a real woman out of me! Love him and his cock so much!"

Dana is sprawled across her bedspread, now damp with sweat and stained with blood and cum. There's a satisfied expression on her peaceful face now, her skin flushed with afterglow.