She tries to keep up.

This question terrifies you as you watch Olivia carelessly slam into Dan's ass. Her hips thrusting with all of their speed and might. You're not even sure you could handle that if you were in Dan's place, the thought of doing that with the massive object currently prying you open seems simply impossible.

"Yeah, he can take it!" Olivia says as she continues happily attacking your neighbor's ass.

You start to panic, praying that Vivien doesn't take her seriously. Unfortunately for you, your prayers don't work. You feel her grip against your waist tighten. You start to yell out, but it's too late. With one hard motion, Vivien pulls you in. Your entire body trembles in pain as her massive cock tears through you.

"AGHH!" You shout as you feel your ass press against her bare skin. You have no idea how you've gotten to the base of that thing, but part of you doesn't want to know. You hold your breath, now afraid to move. She holds her place for a moment, allowing you to gain some hope that she's rethought her decision. That hope is soon killed as she pulls back just as quickly. You feel your insides shifting as they're surely in shock of what's just happened, being **** to make way for the cavern now inside of you. You don't have long to think about this though as she once again jams herself in.

The intensity is unbearable. You feel your arms and legs begin to buckle as she pulls back out. Your heart races as your head begins to spin. Another move in brings you to the tipping point. Your vision begins to blur, you can no longer focus on what's going on as the pain overcomes you. You feel yourself collapsing on the ground as everything goes black.