All characters and events are fictional, and all participants are over 18.
This is an ongoing story that jumps between the past and the present.
Ash woke to the sounds of grunting and heavy breathing. He reached out in the dark and felt Nina's curly hair spread out on the pillow beside him, felt Luke's hand leaning down from above.
'Finally, you're awake. I need you to fuck Luke in the ass so he hits harder in me. I prepped him for you.'
Ash chuckled. Every time he woke there was a new surprise. He felt his way along Luke and Nina's humping forms, feeling up Luke's hard, taut legs to his ass. He found a toy buried there, the crack slick with lube, and eased it out, teasing it around the relaxed hole.
Luke groaned, pushing deeper into Nina, then paused.
'Turn around.'
Ash heard some shuffling as Nina turned over, Luke moving against her to re-enter her pussy from behind. Ash pumped his shaft a few times, pushing the pre-cum onto his tip, and drew it along Luke's crack, thoroughly wetting the end. Luke slowed his pumping into Nina, holding steady as Ash readied himself. Ash could feel Nina moving her butt against Luke's thighs, rubbing his dick around inside herself as he held still, and Ash eased his glans into Luke's tight, slick ring. He felt the muscle relax, Luke breathing out as he was overwhelmed with the sensation of the cock entering his rectum, his own cock buried deep inside Nina's hot, tight vaginal walls. Ash took it slow, pushing his shaft in a tiny bit, pulling it out, pushing it in again, relaxing Luke's asshole even further and prolonging the feeling of entering him. He reached around, feeling for Luke's cock, and wrapped his fingers around the base, pressing against Nina's dripping, distended lips. He kept his hand there, holding Luke still as he finally pushed his whole length into his rectum, until the gummy anal ring was stretched around the base of Ash's cock.
Luke steadied himself, opening his knees wider, then carefully thrust himself further into Nina, slightly pulling Ash's cock out. Then he moved his hips back, withdrawing from Nina's pussy, pushing himself back onto Ash's member. The three of them had practised this arrangement hundreds of times, finding the exact rhythms that suited all of them, relishing the moments of being joined together.