Hucklerabbotlvie where Dennis is free use for a day, he'd never done it before and is under the impression that his pleasure will be equal to theirs, and that idea gets reinforced by the way Ogilvie fucks him all slow and sweet first thing in the morning, long fingers working Dennis open so thoroughly that Dennis feels hollowed out. And it's so good, the way Ogilvie slides into him, moving at a snail's pace, letting Dennis feel every inch. Those same long fingers wrap around his drooling dick and mimic the slow tempo of James' hips, making Dennis cum and drawing out his orgasm till Ogilvie fills him up too.
It was perfect. It was exactly what Dennis thought 'free use' was, just a day full of pleasure and release.
Robby and Jack had to run a few errands in the morning and don't get back till around 10-11am, so neither of them had the chance to play around with Dennis yet. Robby is quick to change that, though. Pulls Dennis around by his hips until he takes a couple side-steps away from where he had been making lunch on the kitchen island, knife left on the cutting board, loose boxers slide down to his feet before Robby puts a hand right between his shoulder blades and bends him over the counter. Dennis hears the clink of Robby's belt buckle and spreads his legs a little wider, excited for Robby to sink into him, excited to cum across the cabinet door faces and maybe get ordered to lick it up.
He expects Robby to prod at his hole a bit to check if he's ready, maybe take some of the olive oil off the island to use as lube, but all he does is spit in his hand to slick himself up before bullying his cock into Dennis. Not a word is said other than Robby's low groaned "fuuuck" as he bottoms out quickly, not allowing Dennis anytime to adjust before he's pulling out and fucking back in too fast for Dennis to really enjoy... but it's fine, right? Maybe Robby's just really pent up, needs to take the edge off for a couple of thrusts first then he'll ease up and start touching Dennis.
Dennis is kept pinned and railed until Robby empties himself inside the boy, not slowing down and never even reaching for Dennis' cock, ignores the way Dennis whines and tries to squirm away, just slides his hand up a little to scruff Dennis' nape, forcing him still.
When he's finished, Robby just pats his hip and leaves him there to tremble on the cold marble. Dennis watches as Robby heads towards the garage, probably to get his bike warmed up. He doesn't like this feeling, so he does his best to gather himself -pulls his boxers up shaky legs, resolutely ignores the feeling of Robby's cum trickling down his thigh- and goes to find the person who treated so sweetly just a few hours ago. When he does finally find Ogilvie, he's on the couch with Jack, and it sends a little thread of unease through Dennis. 'If Robby was like that, wouldn't Jack be too? They're closer, both emotionally and age-wise...' Dennis assumes Jack will do the same, chooses not to engage at all with the other attending, and quietly asks if James could come talk to him for a minute... alone, please.
He spills himself to Oggy the second the guest room door closes, says he doesn't know why Robby didn't touch him, didn't use anything but spit for lube, didn't even talk to him before fucking him too hard and too fast and-
"You agreed to free use, so he used you how he wanted to," James doesn't say it like Dennis is stupid or like he's dismissing him, just states the facts. It has Dennis questioning his interpretation of their discussion the day before. As if he can read Dennis' mind, Oggy add, "maybe it wasn't explained well enough, or we assumed you knew what it was before we suggested it."
"I thought it was going to be like how you did it..."
"Do you want to stop? We can stop at any point. All of us can use our safeword, especially you right now. I'll go tell them that we're done, you can stay here, just tell me and I'll go."