Dominantly

The feeling of her massive cock crushing his dick even through the bare covering was far too much for him as he bit his lip and gasped, his mind felt like ti was going to melt as he knew that if that kept up, he was going to show her that he was far more vulnerable to being bullied by a futa dick against his own as he groaned and gasped. His mind felt like it was going to break as he knew that he was going to burst again as she gripped his side and began to grind her cock harder against him, her massive pale futa cock began to grind against him making him whimper loudly as slowly but surely, he felt his tiny dicklet starting to lose to her size as she licked her lips as she leaned into his ear and began to speak.

"It's ok if you want to cum, it's only natural for the sub to cum from getting bullied. Don't worry, you don't have to hold back on my account. I want you to cum from my dick. Show my how that tiny dick is able to cum just from a touch!" Sarah hissed as his dick shook as cum began to leak out of it as she began to grind her dick again making his back arch as she bit his ear making him squeal.
"S-sarah?! What are you doing!?"
"Just seeing how much you like it when I bite that's all."
"B-but I didn't ask you to bite-"
"You didn't no but I am going to bite you to make you know that you are mine." She hissed licking her lips as she knew that she was going to have him eating out of the palm of her hands and well then maybe after that she'd have him kissing her waist as her cock was buried deep in him as she hissed into his ear his hairs standing on end as she grinned.
"But I think that for now I'm going to enjoy making you cum with my cock now are you going to just let your little sister bully you or are you going to try to push me off?" She asked as he for a second began to rise up but her strength made it clear that forcing himself off was not an option at the time.

"I... I don't have the strength to push you..."
"Well then let's see if you can hold off from cumming alright? You do that and well maybe we'll see about a looser chastity cage for you." She grinned leaning down to kiss his neck making him groan in pleasure as she licked and bit his neck planting kisses all over grinding her cock against his as she started to take off his clothes!