Let them both satisfy your needs.

Since Tara had gotten her share of me and Sara was such a good fuck I decided to continue with Sara... but wanted to provide Tara with some attention as well.

I laid down on the bed and asked Sara to take her skirt off and come ride me. She seemed very happy to comply.
Then I asked Tara to ”give me something to eat”. First she looked puzzled, but then she understood what I meant and giggled as she once more straddled my face. She even managed to sneak a moment sucking my cock back up to full erection before leaving it over to her sister.

As I licked Tara with long strokes by my tongue I could feel Sara straddle my hips, lightly grinding her stockings against my skin, and then let her velvet wetness slowly engulf my manhood down to the hilt.
It felt even better than before. This time it was all for me, and I made no effort making any move that didn't bring me closer to orgasm.

• ”That's right girls!” I urged, ”Make me cum!”

• ”Tara, lift yourself a bit, I want to be able to see you and Sara between my licks.”
  Tara raised her pussy about four inches, which was just as I wanted it.
  Looking down I could now see Sara's orange-clad mound bounce up and down on my dick while her tight pussy tried to hold on to it by a firm squeeze. It felt incredible!
  Looking up I saw Tara's nicely shaped ass, her wet mound and swollen clitoris, a lovely sight indeed...

  ”I'll be right back”, Tara suddenly said. She got up and out of bed, so I concentrated more on what Sara was doing.
  She now slowed down her effort, leaning forward over me while riding with long slow strokes. I would not be able to hold back much longer...

  Suddenly Tara was back. The first sign of it was when she, again, pulled a leg of her pantyhose over my head. I could feel it being freshly soaked with her juice, which put me straight at the edge of coming.It was temporarily postponed by the disturbace caused by Tara as she returned to her position over my head, but this time facing me instead of Sara.
  Tara grabbed the free pantyhose leg, holding it with one hand in front of her belly and the other hand behind her back. Thus she held the sheer, transparent, nylon pressed against her mound and began to pull it back and forth on her crotch, straight over my face so I could see it close up. All the time she kept her eyes fixed at mine.

  Obviously this wasn't the first time these vixens pulled this stunt. When Tara nyloned my head Sara stopped riding and just sat there with my prick deep inside her, working it with her cunt muscles while waiting for the inevitable.

  The combination of inhaling Tara's juices while watching her lusty eyes and nylon treated pussy, and at the same time being milked by Sara's hot cunt made it impossible for me to hold back any longer.
  I got an orgasm stronger than ever before. It felt like my entire groin was being pumped into Sara, and all she did was asking for more.
  ”Yea! That's right, big boy, keep it coming! My pussy wants it all!”

  When Tara noticed that my orgasm had started she stopped massaging her mound and began to quickly stuff the pantyhose leg into her pussy instead.
  As my cock finally stopped pumping semen Sara climbed off me, and Tara quickly spun around to grab my dick by the root. She carefully removed the condom, doing her best to prevent any sperm from leaking out. As soon as the meat pole was free she engulfed it with her mouth, licking feverishly to get all the remaining sperm onto her tongue and down her throat.
  By this time I was totally spent. Just lay there catching my breath as good as I could with Tara on top of me, half of her pantyhose still covering my head. At least I got a nice view.
  Once Tara finished licking she slowly backed up, pulling the hose off my head in the process, and stood by the bed, looking at me, with the pantyhose hanging down like a third leg of hers. Then she let that ”leg” join the rest of her hose inside her cunt.

• ”This way I won't be dripping all over the floor when I go back to my room.” she told me. ”I'll bring this as a night cap.” she continued, holding up the used condom in front of her.

  In the meantime Sara had straightened her clothes and now stood by the door.

• ”Please come visit us tomorrow,” she said, ”I'm sure mum will be happy to get to know you too.” she added with a wicked smile.

• ”Come on, sis, it's time to go back to our room.”

  The sexy twins went out the door, leaving me on the bed.