As always, a million thanks to TheLovelyJudy! I was worried that the story would be perceived as too "cutesy", but you really get what I'm going for in making the main characters (especially Caligula) loveable at the beginning.

Seeing as this is a Caligula fan-fiction, I figured I needed at least two gratuitous sex scenes in order to remain faithful to my source, and this is the first.

Two years later

Drusilla was busy braiding her hair when she heard footsteps behind her. Is he still here?

"Not now, Cassius, I'm doing my hair" she glanced over her shoulder; a look of impatience plastered over her features and gave a small start, her face changing instantaneously.

"Gaius!" she shrieked, racing up to him and flinging herself into the embrace she had grown up in.

"I met Cassius on my way in. He's going to town; won't be back for a long while"

"How did you get here?"

"Paid off my new tutor" Caligula managed to gasp out in between harsh kisses to his sister's lips. "He'll tell Antonia I was with him all day. Pinched a slave's clothes to get past the guards. Should probably pay him for it".

"Where'd you get the money?"

"Antonia doesn't exactly keep it hidden"

"How often can you do it?"

"Until I get caught"

"I can give you the money if you want. I've got plenty of it to spend now."

He made a halfhearted attempt at a refusal, but once she assured him that he would only be depleting the purse of his despised brother in law, he agreed. As they talked, they made their way to the bed, where she sat opposite him and stared into the eyes she had sorely missed.

They had become spoiled by Livia's near-deafness, so when she died, and they had to live with their grandmother Antonia, they had kept up their nighttime activities just as often and as loudly as before. When Antonia discovered them in the middle of an astonishing feat of acrobatics one night, they had been ordered never to see each other again. Neither adolescent took the warning seriously, but soon, they were physically prevented from visiting each other by the guards Tiberius had ordered to watch them, and were only allowed to see (but not talk to) each other at mealtimes. Their few meeting attempts all ended with violent beatings from their alleged protectors, so they soon gave up and contented themselves with imagined conversations and self-inflicted ecstasies. It seemed too sweet to believe that they could finally be together as often as they wished.

"How is it with Cassius?"

"Oh, you are vile", Drusilla teased, running her hands through her brother's silky blond hair, before being wrestled onto the bed.

"He's so terribly fat. How do you even do it?"

"Well, he was able to do it." She tapped his nose. "I shan't tell you any more."

"What happened when he realized you weren't a virgin?"

She pushed him off her and repositioned herself on the bed so that she was clutching the sheets to her collarbone.

"Oh, Cassius, I'm so ashamed" she murmured, widening her eyes and thrusting her chest out in an obvious self-parody. "I just have no idea how that could have happened" she continued, letting the sheets slip down in her "sorrow", and subtly rolling her shoulders enough to let her loose gown fall tantalizingly low over her large, round breasts. "If only there were some way I could make it up to you" she cooed, her eyes widening and her lips trembling "but I know I just won't ever be able to". She put her hand to her mouth and touched her lower lip in her mock-anxiety, as she continued breathing into her chest, until her breasts seemed moments away from freeing themselves, their pink tips just beginning to peek out from her gown. "I do so want to make you happy." She widened her eyes and drew in her upper arms, making her breasts look even more delectably large.

"What was his response, then?"

She let her body relax and her face lost all traces of conniving innocence. "Same as yours" she laughed, eyeing his ill-concealed erection.

He gave her an insolent smirk. "Shall we make up for all the time we've missed?"

"Well, I don't know. I've been so spoiled by Cassius that I'm not sure if you could-"

Her playful taunts were quickly silenced when he crushed his lips against hers and forced her onto her back. He pulled the sheets off her and quickly removed her clothes. He took a few seconds to simply stare at her hungrily, while she continued to giggle. Her blonde hair and blue eyes matched his almost perfectly. It had always seemed so natural that they should be together. Who else deserved to even look at something so beautiful?

"I love you, Gaius" she murmured, placing her hands on his shoulders. "Don't ever abandon me for such a long time again."

"Believe me, I won't."

He got on top of her and kissed her on the lips. She groaned and arched her back so that he could feel her naked breasts pressing against his chest. He moved his hand down and began using the pad of his thumb to play with her already hard nipple. He gave her lips one last kiss before his mouth trailed down to her neck. He gently bit at her shoulder and neck, wanting to re-claim every inch of his sister after she had given herself up to that disgusting old man.

"Gaius, stop! Please, don't!"

He kissed her, almost ashamed that he had forgotten how ticklish she was. He hated to think that any little quirk of hers had gone unremembered. He redoubled his "attack" on her, until she was breathless from shrieks of laughter and the area from her chin to her shoulder glistened with his saliva.

"Well, I hope you're not going to stop there" she panted.

"Oh, I'm not." He grinned, staring ravenously at her breasts.

Before she had time to catch her breath, he grabbed her breasts and squeezed them harshly. Her body gave a little shudder of delight and he immediately took her right nipple into his mouth, continuing to manipulate the left with his thumb. He began licking the hardened peak with his saliva-coated tongue before greedily sucking on the pale flesh. He'd forgotten how good she tasted. He switched over to her other breast, and gave it an equal amount of attention, even biting down on her nipple, which made her buck her hips and shriek even louder. His hand made its way down her belly, stroking and patting the sensitive area below her navel before lightly cupping the area between her thighs. She pushed her hips further into his hand and with a quick dip of his finger, he ascertained that she was more than wet enough to accept him. He nudged himself into her. She was even softer and warmer than he remembered. He began thrusting his hips, slowly at first, but he soon gained speed when he saw how much she was enjoying herself.

Drusilla groaned and tugged her brother's hair. Her entire being seemed to have become nothing more than the intense wave of pleasure she felt as he continued pushing into her. She felt him come inside her with a final, intense thrust. He rolled off her and lay next to her, wordlessly running his fingers through her hair and biting her nose.

"That was nicer than I remembered." She mumbled exhaustedly, before nuzzling her head against his chest.

"So, I'm better than Cassius, am I?"

She nodded, too sleepy to respond properly.

He kissed her forehead and let her sleep, marveling at the fact that he was part of her.