Start with a kiss.

There was a silence for a few minutes. I was sweating slightly, probably with horny nervousness, but maybe it was just the water bottle on my back. The sisters weren't speaking either. Eventually Ciara removed the bottle and applied the ointments. I held back a moan: the creams felt deliciously cool and her slender fingers moved with practice and grace. I wasn't sure if I was allowed to express how much I was enjoying her attentions until I heard Yvette snigger, "Look at him, he's all stiff and frightened. It's okay, I know how good she is with her hands, you don't have to pretend you aren't enjoying it."

I expressed my relief with a sigh. "Ciara, your hands feel amazing," I admitted.

"Aw, thanks." The teenager sounded genuinely pleased. She pressed me around the waist in a way that made me gasp. To my surprise both sisters giggled.

"Shouldn't you turn him over now?" asked Yvette, a funny tone to her voice. I don't think Ciara noticed because she agreed it was time to do my front.

I wasn't as discreet with the blanket this time as I flipped over. Ciara blushed again, and said in a small voice, "Oh. I thought it'd gone away."

If my erection had been in any danger of disappearing, Yvette whispered request had removed any such possibility. I wasn't sure how to explain it to Ciara, though, but Yvette covered for me. Sort of. "He's a guy, it's a dick. He's in bed with two women he wants to fuck. It can't help but get hard. It's just something a girl has to accept about men."

Ciara looked at me open-mouthed, her eyes searching. "Is that true, John? You want to fuck me?"

It was my turn to blush. I nodded, and said, "It's only natural. You're a beautiful, fun and sexy girl. My body can't help but react in a certain way, though obviously I'd never actually, you know... I mean, I'm with you're sister and I'm way too old for you," I finished lamely.

Yvette smiled mischievously. "You aren't too old for her. Miss Jailbait prefers her guys matured and experienced, isn't that right?"

Ciara nodded shyly as she began to run her hands over my chest. Rubbing the ointment onto my sore flesh. "It's true. I've always had a thing for older guys. I first made out with a guy when I was 12. He was a college freshman." As she moved lower her body passed just inches over my erect cock, gingerly avoiding contact with it. "Do you think that's weird?"

"There's nothing wrong with having a sexual fantasy," I told her, enjoying her caresses. "And this is a pretty tame one."

"Besides," Yvette put in. "I'd be really worried if you wanted to fuck any guy your age. I haven't met a single one I could stand."

"It's just that it's been worrying me. I mean, I'm going to college in a few weeks, right? That's why I'm crashing at Sis' place, while I get ready. At school everyone would make up stories about what a slut I am, always running after older guys, girls... I hated it. I thought I'd be able to reinvent myself, you know? Turn over a new leaf in a new place where no one knows me?" I was alarmed to see tears in her eyes.

"Ciara is a virgin," Yvette said quietly.

"Yeah. I mean, I've done some stuff with girls, I don't mind girls my age, but..." she gestured at my cock, "I've never even seen one of these in real life. I tried, I really have tried, to be normal, to get over this age fetish. I got some sexy piercings, some tats... so that I can get the boys interested. But every time I go out with them I just feel so... disgusted." Her hands were at my abdomen, and were lingering there. The blanket was shifting ever downward toward my pelvis as she worked. I don't think she was doing it consciously because she was staring me right in the eye. "You know the date I was on? Cute guy. But I lied when I said I wanted to fuck him but couldn't because of Sis' rules. Truth is, when we were making out and he put his hand under my shirt, I felt like throwing up. What is wrong with me?"

She actually started to cry. Yvette reached across my body and drew her baby sister in for an embrace. "It's alright, sweety. It's alright. There's nothing wrong with you. You're my perfect baby sister." Her voice was low and soothing, but I saw her stroking her sister's slim back with a sensual slowness. What had I gotten myself into?

Ciara sobbed into her sister's neck. "I'm sorry I was mad at you. You have a great, sexy guy, and I was jealous because you can have the things you want without guilt and I'm just fucking myself up. I'm so sorry, Sis. I love you so much. You've done so much for me, I'd never hurt you." She gave Yvette a wet kiss on the cheek.

Yvette responded with a peck on Ciara's lips.

Ciara pulled Yvette tight and kissed her fully on the mouth. Yvette squeezed her little sister's taut ass.

My jaw dropped. The Blacks were making out with relish: sobs, moans and happy giggles and the wet sounds of lips against lips and kisses on skin. Yvette pushed Ciara to lie back on the bed, and lay on top of her. She kissed her sisters lips, nose, chin and neck, and gently opened up her dressing gown to reveal to me the slim young body. Ciara moaned as her sister's tongue ran down her neck, tracing a wet line all the way to her flat chest. The pale outline of a thin bikini cut through her tan. Yvette teased and gently bit on an engorged nipple the size of the last joint of my thumb. "I've always loved your pretty, long nipples, baby," she said to her sister, who was beyond words, only crying out cutely in time with her sister's bites.

I nervously extended a hand and stroked Yvette's back as she worked Ciara's body. She turned to me as if just noticing I was there. She grinned hungrily, her eyes half-lidded with desire. "Baby girl, your present seems to be getting impatient."