Make him give you a blowjob while in trance.

The sensible thing would be to start slowly, but the need to fuck is overwhelming. You need relief, and your brother is the one who can give it to you.

You sit astride him on the bed, and place your hand just above his face to manipulate his thoughts while he is in a trance. To Mark, it'll just feel like a dream, which is exactly what you want.

You start by putting thoughts about being sucked off by a pretty female cheerleader in his mind, and underneath you, Mark groans a little. You wait until he is really into it, then slowly change the cheerleader from female to male. The cheerleader is still pretty, blond with blue eyes, and his face is still a little feminine.

You feel a wave of confusion coming from your brother as he pushes back against your power. You focus on having the male cheerleader give your brother the best blowjob you can think of, and soon, Mark relaxes, moaning again as the male cheerleader starts deepthroating him. You make Mark think that clearly, guys are better at blowjobs than girls since guys have the same parts and know what feels good.

Once Mark is relaxed and enjoying his little dream of being sucked off by a male cheerleader, you let him focus on what makes a blowjob feels good and what he likes. You have the male cheerleader in the dream do just that, but you also can't help your own big demon cock from hardening.

You pull it out and bring it to Mark's slack lips. "C'mon, just relax," you mumble, as you slide your cock inside your little brother's wet mouth.

You draw on Mark's own preferences for blowjobs, letting him think of what feels good, and having his mouth do that to you. You gasp and moan as your little brother starts licking the tip of your demon cock. It feels extra sensitive, and you groan in pleasure. You just about remember to have Mark dream about getting sucked off by a cocksucking pro of a male cheerleader.

You push your demon cock in deeper, marvelling as Mark deepthroats you with very little problem. Your brother's cock is hard as a rock now, and you slowly thrust in and out of Mark's mouth.

It will take some effort, using someone sexually like this while making sure their dream stays pleasant, but you're pretty sure you'll get the hang of it.

Soon, Mark's cocksucking skills make you climax, and you shoot your cum down your little brother's throat. Since he prefers it when people swallow, he does the same.

Still panting, you sit back and having the male cheerleader in the dream increase his efforts until Mark comes as well. You make sure to have the cheerleader swallow his load happily.

You grin as you look at your brother, and slowly let the dream fade, along with the trance. He's still sound asleep, but no longer dreaming, and his cum is drying on the sheets.

If manipulating others is this easy, you start to wonder who should be next. Maybe some of Mark's wrestling buddies? You're sure you can make a few of them bend over for you so you can fuck them. Or maybe you should continue to manipulate Mark, since you're pretty sure he still needs it.