You go to her place

“Hey Peg, ready to get off?” You ask when you see her in the break room.

“You have no idea. The girls have been cooking all day.” You see her balls have swollen massively. They have pulled all her pants material and are sticking out of the leg holes.

“I’m going to be fucking huge after I take all that and whatever else you make overnight!”

“Let’s go!”

*****

You both waddle into her house and once inside, your pants hit the floor and she takes you from behind.

“Oh Ian…fuck you’re making me cum like a teenager! I have no control around you!”

“Peg! You’re cumming so hard! I love it! Fill me! Don’t stop!”

You feel Peg’s cock swell larger as she cums, sealing you better the more pressure she puts inside you. After she finishes the first round, you stand upright again. You wobble a bit from the weight inside your belly. Luckily, your ass is firmly attached to Peg’s cock.

“Fuck, Ian…you do things to my body…” she giggles. “Can I offer you a water?” Peg asks as she pushes you along in front of her. Walking with her inside your hole is like a strange way of having sex. You are both similar in height, so she is bouncing off your cheeks with each step.

“Thanks,” you say as she pours you a glass. You watch her down ten glasses as you drink your one. “Don’t forget to hydrate, Peg.”

She winks and spends the next ten minutes chugging glass after glass of water. You watch her belly grow round with the volume. She stops to breathe and rub her belly.

“Are you into my big belly like I’m into yours?”

“I am. Make sure you hydrate, Peg,” you prompt her.

“Oh, more? Okay,” she grins.

You watch her down twenty more glasses and then she stops to breathe. She begins drinking them more slowly after that. She burps occasionally as she takes a deep breath before every gulp, clearly forcing it down now. You feel her belly pressing into your back is no longer soft, but hard with the volume. When she takes a small sip and you see her gag reflex trigger, you know she’s full.

“Okay Peg, you’re full now. We’ll work on it more in the morning before work.”

Peg clearly looks aroused, but also uncomfortable with her size. You begin to bounce against her, but she stops you.

“Not now, wait…I’m too full…”