She stood up and followed us into Julie's room.
As we stepped in, Julie dropped her robe, exposing herself; ass just a little bit round, beautiful back, then, as she turned, her round breasts and gently full belly. Leah looked at her, glanced at me, and dropped hers. She stood there, slender and dark, with wavy black hair to her shoulders, small conical breasts with dark puffy nipples, a slender waist and a belly so flat it was almost hollow over her pubic bone, amplified by the prominent black curls of her pubic triangle.
They looked at each other and then at me.
I stripped off my shirt and undid my pants. My cock was half-hard. I was excited, but really unsure of what was about to happen.
Julie pushed Leah forward. "You want her?" And Leah reached back and pulled Julie forward. "Her first. I want to watch."
Julie smiled -- almost a smirk -- and stepped up to me. I whispered to her "Is this OK?"
She grabbed my cock and caressed it. "A little late to ask...but sure. Let's have some fun," and leaned up to kiss me.
She rubbed my swelling cockhead against her belly and the top of her bush, sliding her tongue over my morning-furry teeth. In a moment I was hard, and she smiled as she stuck her tongue deep into my mouth.
Stepping away, she pulled me by the hand as she stepped toward the bed. She turned and knelt on the edge of the bed, spreading her knees and looking back over her shoulder at me. I looked at Leah, who was massaging one breast and watching as intently as a peregrine falcon watches a meal.
I stepped behind her and took my cock in my hand. Looking at Leah, I slipped the head of my cock up and down her slit and slowly slid in. She was warm and sticky and slippery and tight and for a moment I forgot we had an audience as I closed my eyes and took in the pleasure.
I slid out a little, then in, then pressed myself deep into her and opened my eyes.
Julie's head was down and there were already beads of sweat on her back. And we'd barely started. I wondered if the audience had aroused her and looked over at Leah.
She was sitting on the corner of the bed, leaning on one arm, the other between her legs. I desperately wanted to see her fingers and her pussy, so I said "Can I watch?"
She turned toward me, and I saw the pink lips dividing the black curly hair, her fingers running between them.
My cock swelled inside Julie and she moaned. I slid in and slid out, feeling the thickness of her juices. The tightness of her cunt, the texture of her internal landscape. I tried to remember what her sister Claire felt like, how she felt when we fucked.
I watched Leah's fingers and looked up to see her hard nipples and flushed chest and wondered who'd come first.
"If I pull out and come on Julie's ass, will you lick it off?" I asked Leah.
"No. I'm not gay." She stopped touching herself. "Is this what you think this is about?"
"No!" I answered. "I just thought..."
"Look, if you and jacket downstairs were both fucking me, would you suck his cock?"
She smiled as she said it, though, and her fingers started moving again.
Julie's pussy was contracting as she laughed.
My head rolled back as I shook it and I said "OK, you've got me."
Julie looked back. "We're not here to fuck each other for you. We're here to fuck you. Now fuck me."