A quick bit of anal

Jon decided he still had enough time for one last thing before they arrived. And fucking Emily in the ass would not only feel fantastic, as he knew she was an anal virgin, but he needed no condom, as he couldn't get AGS flu this way.

"Emily, it's time for our traditional anal sex before arriving. We do it every year, remember?" Jon told Emily, making up a tradition of them having anal sex on the trip.

"Oh, yeah, I forgot. Let's begin", said Emily, moving so Jon had easy access to her ass.

Jon first spit into his hand, in order to have at least a bit of lubrication. It would be painful, but also fantastic. Taking aim, he placed the tip of his dick on her asshole and began to slowly push. While he did this, he added a little command.

"Emily, you are really turned on by anal sex and absolutely love it", said Jon, and as soon as Emily's mind processed the command, she began to moan in pleasure. She pushed one free hand into her pussy, giving herself even more pleasure.

Slowly but surely, Jon pushed his dick all the way into Emily's ass. By this point Emily had orgasmed multiple times and was heavily panting and moaning. Her ass finally adjusted slightly to his dick, allowing Jon to begin to pump her. He fucked her in hard, powerful thrusts, knowing he would not last long in a hole so tight. Every thrust brought a wave of pleasure to Emily, who had a massive chain of orgasms, and was left moaning on the car seat as Jon finally came, filling her ass with cum. Emily was just mindlessly moaning on the seat as Jon withdrew his dick, making sure he wouldn't get AGS flu.

The car came to a stop as they finally arrived to the camping site. It was an isolated patch of forest no one ever came to, which usually meant peace and tranquility for the group, but now meant Jon had free regin over his sister and his friends and no one could stop him. Leaving an exhausted Emily resting on the car, Jon ordered Eric to help him set up the tents, while he had Jenny do a nice striptease for them while they worked, and later had her fuck herself with a water bottle. He and Eric only set up two tents instead of the usual four, he planned to sleep in a tent with Emily while Eric and Jenny shared the other. Luckily the tents were quite spacious, and Jon had enough space to sleep without threat of accidentally getting the flu. And he did have the medicine, altough he was starting to think it may have been a scam, the site he found it on did have a history of unreliable information and promoting hoaxes.