All characters are over the age of eighteen.
*
I had just experienced a first. I've barely been married for a day and I've now celebrated the union with incredible sex with my bride and as of just a few minutes ago, my older step daughter. It was something that we had promised each other in the weeks and months leading up to the wedding, but as much as I believed it would happen someday, I never imagined that it would be on an airplane at thirty thousand feet, with my wife and several friends looking on! But that's how it happened and I remained seated, in a slight daze, as I watched Tracy strut down the aisle to where her younger sister was seated.
'Hey Teri, check this out!' I heard her say as she neared Teri's seat. She put her foot up on the armrest and opened her legs to Teri's watchful eyes. Placing her fingers on her labia she spread them and allowed my jizz to drip down her leg.
Teri's eyes widened as she realized what she was seeing. She's had enough sexual encounters with Tracy to recognize every pore of her sister's naked cunt. And she knows the difference between Tracy's own cum and mine. This was the first time that my sperm had ever been deposited inside of Tracy's vagina.
'Oh my God Trace! Is that Rob's cum?'
Not waiting for an answer, she leaned forward and licked the slick cum from Tracy's leg.
'Holy shit, it is Rob's! Did you just do it? How come you didn't come get me? What did it feel like? Where is he? Does Mom know? Are me and Amy the only people on this plane who still have our clothes on?'
Tracy stood there grinning at her sister. There were too many questions to try and answer, and Teri already knew most of them anyway. Instead, she just kept on massaging her deflowered cunt and the fluid continued to drain down her leg. Amy leaned over and licked some of it off and ran her tongue up to Tracy's clit. Tracy stood up on the armrests and spread her legs to allow Teri and Amy a chance to take turns consuming the load of seed that I had deposited inside of my step daughter. They licked her clean and then spent a few minutes kissing each other and sharing the last flavors of my cum and Tracy's that were blended in her hot young hole.
'C'mon you guys,' Tracy said as they finished up, 'you need to get naked and join the party! This is turning into a mile high orgy!'
She climbed down from the armrests and looked across the aisle at Carol and Candi who were busy sucking on Sue Fine's firm nipples. Sue looked up at her and asked, 'Tracy was it a moment that you'll never forget?'
Tracy smiled warmly. 'Yes it was. I love him so much. I'm so glad that Rob and Mom got married. I feel like he married me too.'
Sue pulled Carol and Candi closer and squeezed them to her breasts. 'Oh God, you're such a lucky girl! And god I love these two! Mmm, come kiss me.'
Tracy leaned over to kiss Sue just as Carol lifted her face to join them. Candi was only a moment behind and together they shared a four way kiss. Across the aisle, Teri and Amy were slipping out of their seats, and their clothes, and moving forward in the cabin to see what they could do to join the fun. They didn't have to go far to find Amy's parents enjoying the twins, Melinda and Lucinda. The two Mexican girls were on their knees between Tom and Dawn's legs licking and sucking, and Teri and Amy stopped to watch the goings on.
Melinda was trying her best to get the head of Tom's monster cock in her mouth. He's so huge that was about all that she could take. Her sister was having an easier time getting Dawn to cum in her face. Dawn grabbed Lucinda's head and held it tightly between her legs while Teri and Amy watched her writhe in orgasmic delight.