Both Bubblegum and Marcy went perfectly still, with Marcy completely hidden under the blankets and only Bonnie's torso sticking out.
About a dozen banana guards ran into the room, flailing their spears to fight a nonexistent enemy. Peppermint Butler ran in after them, looking around for any threats and then spying Bonnie on the bed, pretending to look surprised.
"Princess!" he said, running over. "Are you alright? What were those screams? Did someone break in?"
She carefully placed her hand on his head to calm him and spoke soothingly. "Everything's alright, PB. I was sleeping and I just had a bad dream."
His eyes widened skeptically. "Really? But I thought-"
"Really, I'm fine." she stressed, anxious to get everyone out of her room.
He looked relieved, but then suspicious. He narrowed his eyes and then pointed to Bonnie's shirt.
"If you were sleeping, then why are you fully dressed?" he asked.
After a brief moment of silence, Bonnie answered with the only thing she could think of.
"... I was cold."
Under the sheets, Marceline held her breath as they both waited for Peppermint Butler's reaction. They both released their breaths when Pepps gave a hum of approval.
"I see. I'll see what I can do about increasing the heat in your room, princess. Sorry for intruding."
He turned around to leave, but before he left he gave her a smile and patted what he thought was her sheet covered knee, but was in fact Marceline's ass.
Marceline opened her mouth to scream in pain, but Bubblegum grabbed her head and smashed it into her crotch to muffle her. A blush grew on her face as Peppermint Butler froze and turned around.
"... Did I just hear something?"
She tried to ignore Marcy's warm mouth on her covered dick, and shook her head in false confusion. "Of course not, Pepps. Are you feeling all right?"
A bead of sweat rolled down his face and he scratched the back of his head. "I- I think I might be hearing things..."
Bubblegum reached out to pat his hand in false sympathy. "I hope you feel better. You'd better run along now.
"Y-yeah..." he said, still concerned that the silent scream had sounded so real.
He once again turned around to head out the destroyed door, the banana guards following behind. They were whooping and hollering, thinking that they had defeated some sort of enemy. Peppermint Butler waited for them all top file out the door before stepping through the door frame himself.
Bubblegum watched it all in tense silence, terrified that they'd still somehow be found out. She gave a sigh of relief when Pepps finally exited the room.
As soon as he left, however, she felt Marcy's hot mouth envelop her cock.
"Ah, shit!" she said on impulse.
Peppermint Butler suddenly poked his head through the door frame with wide eyes and a shocked expression. Bubblegum blushed harder and felt her whole body tense.
"Princess!" her butler said, amazed that she had cursed.
"W-what? What is it?" she stuttered.
"You just swore!"
"No I didn't." she said defensively.
His accusatory glance weakened and his eye twitched. "You didn't...?"
"No, I didn't. Of course princesses don't swear. You must be hearing things."
He held up a hand to his forehead and nodded. "Y-yeah... I'm definitely hearing things. S-sorry your highness."
with that, he turned around and left. Bonnie waited a good minute before ripping the sheet away to reveal Marceline, still sucking her dick. She crossed her arms in annoyance, even though Marcy wasn't stopping any time soon.
Marcy glanced up to meet her angry expression and groaned on her dick, sending some lovely vibrations into it before releasing it.
"What, Bonnie?" she said, eager to return to her task.
"What? You ask me what? What, was that? You nearly gave the whole thing away, stupid!"
Marceline rolled her eyes and began lazily jacking Bonnie's dick. The princess was somewhat angry, but didn't make any move to stop her.
"What's the deal, Bonnie? We didn't get caught."
"It's not that we didn't, Marcy. It's that we could have. Because of your recklessness, we were almost discovered."
Marcy, bored with being scolded, began flicking Bonnie's dick randomly. "What's the big problem with getting found out, anyway?"
Bubblegum narrowed her eyes. "The problem, Marcy, is that if someone found it out it could get to lemongrab. Or to my various suitors. Or to the ice king, and god knows how he'd react."
"So?"
"I'm not supposed to engage in sexual activity with anyone but my husband, Marcy. I've told you. And it has to be my husband, after I marry him and become queen of the candy kingdom. There are rules, and there could be consequences for breaking them."
Marceline rested her head in her hands, now interested. "What does that matter? Aren't you the one who makes the rules?"
"I wish." she said sadly. "But these rules have been around for hundreds of years. If lemongrab, or any suitor from a rival kingdom found out that I was breaking a sacred rule,and with a girl, no less, I could have a war on my hands."
"Wow." she said, her eyes widening.
"Marcy... I really like what we're doing. But if it hurts my kingdom then I absolutely cannot abide by it. Besides, if someone found out you could get hurt."
Marceline looked away, fighting a blush. She coughed to get the lump in her throat out and turned back to bonnie.
"Okay. I'm sorry. I'll be more careful from now on."
Bonnie smiled warmly and ran her fingers through Marcy's hair. "Thank you."