While more moans escaped his cousin's lips, Ben continued to cause her huge butt cheeks jiggle like mad. He humped his member against them, and it felt good. The hot ass flesh against his rigid cock sent shivers down his spine, and his body contined to quiver.
To stop himself from shaking, Ben put the upper half of his body to use too. Gwen moans became more hoarse as she felt something moist against her ass as well.
Ben sucked the abumdant flesh surrounding him. Again he had acted on instinct, and got a positive response.

As Ben sucked and shook her massive rear, Gwen had her hands on two other supple orbs. She had taken off her shirt, and was currently testing the sensitivity of her breasts. The end result was very satisfying to Gwen, as the mere touch sent more waves of pleasure through her. Like Ben, Gwen just thought this up, and it felt great. The only downside to Gwen was that she had noticed how small her boobies were. That could be fixed easily though.

Ben sucked and lapped at the two mounds he was sandwiched between. His erection continued to throb, but this was all starting to run its course. Ben wanted to try something new, something....unexpected.
A memory flashed in his head. He squirmed and wiggled his way deeper in Gwen's crack. Recieving excited squeals from her. Gwen had a pretty good idea what Ben was up to, and hoped she was right.
Down below, Ben layed his eyes on his target, Gwen's pucker. Even in the dim lighting, it was as clear as daylight. Once this sight had made Ben wretch, not anymore.

The rosebud quivered as Ben inched something closer. Last time he had his face directly in it. This time however, he felt like shoving something else in.
Gwen gasped loudly as she felt something long, big, and hard being shoved into her anus. Again it didn't take much thinking to figure it out. Ben was giving her anal sex!
She let out brief cries of pleasure every time he retracted, and shoved his cock back in.
She moaned at how big it atually felt inside her. This definately makes up for anything Ben had done to her before.

"BEN!" He heard his cousin shout. Excited by her response, Ben increased the speed of his pace, longing to hear her cry out his name again. Several times later his name came from her, and every time he went a little faster. However, Ben was was starting to lose a certain battle. As he continued to bang Gwen, he could feel a pressure build up inside him. Naturally his reaction was to hold it in, but the longer he did, the more it quickly built up. Ben also noticed that the longer he resisted, the better this sensation felt.
At last, when he could deny it no longer, Ben grunted loudly and exploded cum inside Gwen's ass.
On the outside, Gwen's mind buzzed as she felt something warm and wet surge through her poop chute. At which, her body tensed up, and she screamed as she came, two times in a row!
Her pucker tightened around Ben's member, milking it of all it's seed.