Extract the beast

With your trembling mess of a sister-in-law's lips wrapped around your mythical monster cock, impaled to her guts, you decide it's time to allow her to escape the terror, and encroaching hypoxia. You move your hand from the back of her head to her forehead, pressing it against the darkening purple ridges on her straining forehead, still able to see her eyes attempting to flee their sockets. With a sharp, violent push on her head you attempt to pull your hips back and extract your cock, but the pressure from its massive girth prevents the motion still. Jennifer's entire body shudders and shakes, with an low guttural gurgling coming from her mouth, the only sound able to escape your imposing member.

Undeterred, you push twice as hard this time, and rip your hips backward quickly. The combination of painful maneuvers intensified the awful sounds emanating from Jennifer, now helplessly flailing with your cock through her lips and into her belly. Your dick starts to move slowly and roughly back through her anatomy, feeling coarsely tugged through her gullet, like Arthur attempting to pull the Sword from the Stone.

With a third, zealous attempt you buck your hips backwards and push her forehead hardest yet, causing your cock to fly from her mouth, yanked free like you were starting a lawnmower, the hulking member shocking even you as you finally get a glimpse of it. As a concoction of pre-cum, drool, and bile fly through the air from Jennifer's mouth and the end of your titanic cock, Jennifer offers her first audible vocalization in since you invaded her:

"BLLLAAARRRRGGG!!!!" the contents of Jennifer's stomach followed immediately after your evacuated beast, she followed quickly dropping to her hands and knees. She gasped over and over and over again, spit and debris continuously spilling from her mouth as she rushed air back into her lungs. As she regained her breath, the color slowly returned to normal in her pain and terror wracked face. Even in the unbridled desire of Blowjob Universe, she was relieved to have your meaty member removed from her throat, if only momentarily.

"I... can't... do... it... " she said between gasps, unable to even draw her gaze upwards. Typically you'd be reveling in her despair, but even you found the sight of her vomit to be very off-putting, recognizing that perhaps you needed be a bit more judicious with your new powers. But then she finished her strained sentence with one word...

"yet"

Even through a **** and aftermath that threatened to turn your stomach as well, the magic of Blowjob Universe set her mind back to task immediately. It wasn't your fault for mouth **** her with a dick the size of a wiffle bat. No, your brother's wife claimed the fault for her own, being unprepared to handle the punishing cock you rammed into her guts.