Jenny doesn't give him much of a chance

Marcus swallowed the last spoonful of porridge his sister fed him, cheeks flushed red-hot. Towards the end of the meal, Jenny's other hand had steadily worked its way up his legs and was now buried under the hem of his robe. He could feel her fingers tracing along his inner thighs, getting closer and closer to his poor, sore dick. As if that wasn't obvious enough, the hunger in her eyes as she stared at him gave the young prince no doubt what her intentions for him were.

He had to tell her now, before she **** him again and mistook his body's reactions for enthusiastic consent. Just as he opened his mouth though, her hand darted in and grabbed his dick, already starting to stroke up and down his soft shaft. Marcus shivered at the awful tingling as his foreskin was rolled back to bare his achingly sensitive head. Jenny pumped her hand along his length, seeming not to notice that it was having no effect on his tired dick. Then her fingers darted up and gave the throbbing tip a firm squeeze, sending horrible shocks through the young prince's skin.

"Ouch!" He squealed. Jenny froze against him, concern flickering across her face. She looked so worried that it was suddenly even harder for him to say what he wanted. "Sorry, Jenny." He found himself murmuring instead. "Um...it's still tender from yesterday."

"You should have told me, darling." Jenny sighed. She lent in and kissed him gently on the forehead, her lips tenderly brushing over his skin. "Okay, we'll leave your poor little dickie alone for now. I forget sometimes how fragile you boys are. Don't worry though, there's plenty of other ways we can still have fun together." Marcus was about to tell her he didn't want any of those other ways either, when she rose from the chair, lifting him up in her arms. His frantic squeak of shock just made her smile again and she carried him easily over to the bed.

In just moments, Marcus found himself laid down on his belly on top of his blankets. His older sister's groping hands were yanking up his robe to bare his naked hindquarters. The young prince stared hopelessly at his pillows, silently cursing his own timid nature. All his promises to tell her how he felt, and now she was still going to **** him again!

With his lower half naked and ****, Jenny took full advantage. Her hands grabbed at his waist, before sliding down and in to find both cheeks of his butt. She cupped them under her palms, groping and squeezing his soft flesh like she wanted to feel every inch. Marcus just lay there, wriggling a little in her grip. His blush was getting worse by the minute, the thought of his older sister so closely examining that part of him sending fresh waves of hot shame flooding through him. Worse still, the way her fingers were groping at that tender flesh was making him feel all warm and tingly in a very dangerous way.

Then he heard a rustling as she lent over his naked body. He froze as he felt her hands gently pull his butt cheeks apart and hold them there. Suddenly her face was buried between them and the young prince let out a shrill squeal as he felt her warm, wet tongue gliding over the skin of his crack.

"Jenny, that's my butt!" He squeaked in shock. Why was she licking him there?

"Don't be so nervous, little brother." She purred, rising up a little while her hands still squeezed at his butt. "You're not my first. I always wanted you to be, but through those awful years apart I got so ****. There were others I took to my bed. All boys who looked a little like you, girly and timid, even if none of them were really what I wanted. It didn't mean anything, I promise, and I always pretended they were you. But now I know just how to make a boy feel really good." She lent down again, spreading his soft cheeks apart.

Marcus squealed shrilly when he felt her tongue on his skin, flickering around his tender butthole. Not there! He wanted to scream and wriggle away, but she was holding him too tight and the feeling of her licking him was doing strange and worrying things to his body. His legs were shaking on the bed, little aching tingles of pleasure fluttering his belly. This was supposed to be awful and embarrassing and it was...but at the same time he couldn't help but feel good too!

The young prince buried his blushing face in the blankets. He found his teeth closing round a little sliver of sheets as her tongue pressed against the tight ring of his butthole. She wasn't go to...that thought was halfway round his head when he felt his older sister's tongue slip inside his butt. His eyes bulged and he let out a whiny gasp. Jenny didn't slow down for even an instant. He could feel her bobbing her head up and down, using that motion to thrust her tongue like a little spear in and out of his tender hole. Marcus couldn't stop her, not with every muscle in his body left limp and helpless by the strange tingling pleasure this was sending through his body. He didn't want it to feel this good, having his own sister lick inside his butt, but it did! So good he couldn't help but moan hotly as her wiggling tongue drove even deeper, feeling like it was skewering him to the core.

Marcus felt a strange heat building in his belly, growing more and more each time his sister's tongue thrust inside him. His dick twitched and throbbed against the blankets, still soft, but aching the way it did when he was about to spurt. Suddenly he noticed his hips were bucking and trembling. He bit down even harder on the sheets. It felt like he'd lost all control of his body, like Jenny had found some magic switch inside him that made his muscles turn to jelly. Any more of this and he'd cum! From his butt!