Yes.

James dived on his sister. All of his built up passion releasing in one nuclear explosion. Within seconds, his lips found hers, and their bodies entwined. Lips on lips. Skin on skin. They rolled, each trying win the upper hand, but Sophie did something to quickly earn it.

As James tried to keep himself on top, she, with speed and slipperiness, slithered out from under him forcing him to flop face-first onto the couch. James' heart sank. In that split-second, he thought he'd gone too far. Turning to apologise, his face pulled into a grin as he saw her, stripping off to her underwear.

"Can't believe you made me wait this long," she grinned. "You are so going to pay for that."

And with that, she jumped on top of him, easily gaining control of the encounter. Her hands were everywhere. Her lips were everywhere. Her tongue was everywhere. James threw off his clothes, which joined hers on the floor, and began grabbing handfuls of ass, squeezing and kneading, pushing her body into his.

Sophie came up for air, licking him from nipple to nose, before sitting back and discarding her bra. James almost wept. Her breast were immaculate. The left one had a very small piercing and the right had a tiny love-heart tattooed above it. He must have been staring for days, before Sophie grabbed his cheeks and pulled him into another deep, passionate kiss.

"I take that you like them then?" she whispered.

James said nothing, responding by grabbing them roughly, causing his sister to cry out. At first he thought he'd hurt her.

"I'm sorry," he whispered.

"Stop being a fucking wet-wipe," Sophie grinned, before grabbing his nipples and twisting them slightly, not enough to cause massive pain but a little discomfort.

James grunted in response as she began to grind against his crotch.

"God I want you so fucking much," she said. "I dunno if whatever's been going on the past couple of days has been teasing or what, but I swear to God if you ever do it again, I'm gonna chop your balls off!"

She reached down for his trousers and unbuttoned them. After fishing for her desire for a few moments, she pulled out his cock, and slipped her panties to one side.

"I can't wait anymore!" she shouted, before impaling herself on his manhood, crying out in ecstacy.

She began bouncing, slowly at first, but after a minute or so, she was going so fast, James was struggling to keep up with her.

"Oh my God!" they cried out together.

James sat up, grabbed her by the face and began kissing her as if he was trying to suck out her very essence, his tongue probing deep into her mouth. As she lifted up her head to cry out, he began licking and kissing her neck passionately.

"You are so damn good with that mouth!" she panted. "I can't wait until you can show me your talents on my other pair of lips!"

After a few minutes, James could feel her clenching around him. Her cries became louder as she reach her climax.

"Oh...oh! Oh God!" she almost screamed.

She began to shake, starting from her legs, eventually travelling all the way up her body. When she began to come down, she sat, panting, James still inside of her.

"Fuck me, bro! That was literally the best orgasm of my life!" She began kissing him, hard, pushing him down onto the sofa again, inadvertently grinding his cock inside of her.

James grunted as she did.

"You still haven't finished have you? Well, I have an idea!" she said, sliding off of him, and grabbing him by the hand.

His sister led him over to the bay window, and bent over.

"It's not totally public, but we should have some people seeing us here," she looked over her shoulder and winked at him.

James' heart fluttered in his chest. Having sex with his girlfriend in public was one thing, but his sister? He wasn't 100% how far these rules stretched. What if they did not incorporate ****? What if someone saw him and called the police?