Not a chance.

With your legs pulled against you, your aunt's cock is left with nothing to penetrate. Still mostly asleep, the head of her cock presses against your balls, rubbing back and forth across them intently. Her grip adjusts, pushing you down against her hard member, looking for any kind of stimulation she can get. This leaves you in a not-inconsiderable amount of discomfort, and you curl up more tightly, trying to keep her from crushing your balls with her heavy dick. Now almost in the fetal position, you find yourself pulled completely under the blankets, her hard cock now being dragged between your cheeks, sliding along your asshole with penetrative intent.

Deciding that enough's enough, you open your mouth to shout just as your aunt's hips buck, pushing her heavy rod directly into you, the words dying in your throat. Instead, you find yourself trying to scream in pain, but that doesn't seem to work, either. Her massive cock has pulled your tight virgin hole apart in one push, leaving you gasping for air. The rest of your body goes limp from the pain as you try to **** yourself to breathe through it. Your aunt keeps thrusting, tearing in and out of your little hole with no regard for the lack of tolerance your body has for gigantic she-cocks. Eventually, you **** yourself to relax your hole enough that the pain starts to fade.

Her strong arms keep your back pressed against her breasts as her pelvis slams into your ass again and again, thick cock scraping along your colon and thumping into your prostate. Your asshole burns from the friction, and your much smaller prick stiffens, bobbing along with the impact of her balls against yours. She groans cutely in your ear, though you're a bit too far gone to hear it, the feeling of her fat piece of meat in your ass becoming your whole world. With a weak cry, your body stiffens, and your dick spasms, a trickle of cum spurting onto your sheets.

Abby continues to pump you up and down on her tool like you're a sex toy, her tightly muscled body moving you around as if you're weightless. You feel her cock pushing into your colon, the head reaching places beyond your pleasure zones while the rest of her cock overloads those same zones. You feel the veins ridging her cock as she slides in, making your eyes lose their focus in sheer pleasure. Soon Abby starts pushing a little harder and a little deeper, more desperately, seeking her inevitable release into your tight backdoor.

Slamming her cock as deep inside you as she can, your aunt erupts, pumping her thick semen into you. The dense, jelly-like ejaculate fills your ass, unable to escape past the tight seal formed by her cock and your tight little ring, flooding your entrance before oozing further in. Having finally satisfied her nighttime urge, resumes her peaceful rest, still grinding against your ass with her now flaccid member lodged deep inside you.