Try to tape down her boobs and sneak out.

"We're gonna have to get out of here if we want to keep this up," you say. "But I don't have much in the way of options."

"Y-yeah," Sadie says, looking down at herself.

"Maybe you could just... bind them again?"

"Um... I was smaller than I am now. I don't know how long it would last."

"It doesn't need to last long. Just enough to get back to my place."

Sadie nods. "Alright. Fine. But when I get there, we're picking up where we left off. Got it?"

You grin. "Definitely."

You find some duct-tape in one of the drawers. It looks really sturdy. You'll just need some leverage. After some experimentation you sidle up behind Sadie, close against her in a sitting position, close enough she knows you're ready to go. You start with a little undershirt, just enough so you aren't putting tape on her bare tits and cram them in as best you can. That part is pretty fun.

Next, you wrap the tape around her body with tight twists, drawing grunts from her on each tug. Your cock presses hard against her tight butt making the whole thing really erotic. Anyone hanging outside the room would probably get the wrong idea.

It holds pretty well,but it's not very convincing in light clothes, so you have to find the biggest, loosest sweatshirt you could dig up to cover her. Hopefully, no one would ask questions.

"Still really suspicious. Maybe you could... carry something? A pillow?"

"I guess... we can try."

You grudgingly slide away from her and toss her a pillow. If she holds it in front of herself, it looks fairly natural. As for the reason she would leave a party with one... that's another issue.

"Let's just go," you say.

"Y-yeah."

You head out of the room swiftly, trying to walk naturally down the stairs. Sadie's breathing is a little irregular. Likely cause the tape is a tad too tight. You lean next to her. "You OK?"

She can only nod.

You make it to the floor, getting no so much as a look from the crowds, everything is going according to plan, until--

"Sadie!" Diane says, approaching.

Sadie groans. "W-what is it?"

"I didn't see you around... so..."

"Fine. I'm fine." Sadie glances back to you. "I was making out with Jamie."

You grin. "Yeah. No big deal, right?"

Diane slapped her on the shoulder. "Hoho! I knew you were bad for it, but he's not a bad catch, huh?"

"Mmm hmm," Sadie says, a look of panic spreading on her face.

You lean in. "Hey, we're trying to get scarce. You know, head to my place? So..."

Diane chuckled. "Oh, is that so. Well, don't let me stop you. I guess you don't mind if I borrow your friend for the night?" She winked.

"Go right ahead. Treat him good, alright?"

Diane wanders off and Sadie clutches the pillow tightly and whispers. "That slap... it made some of the binding tear."

"Oh... Oh!" You glance around. "Time to improvise, I guess." You scoop up Sadie in a bride carry and let out a playful roar. "Excuse us, booty call comin' through."

People part at your gesture, only holding up their drinks to acknowledge.

Sadie flushes bright red. "Y-you..."

You lean close, whispering. "They won't remember you. Chill."

As promised you get out the front door. A noisy snap echoes through your ears alongside a flinch from Sadie. You feel the swell of her tits press against your arms. "Glad you have the pillow huh?"

"Y-yeah," She says and laughs. "Hope you can carry me the whole way."

"Yeah well, I'll just keep my mind on the prize. I'll be good."