Chapter Text
They were still in the early stages of their relationship, the days when just about anything could be considered an excuse for sex and they were still learning all of each other's tricks and tastes, so Danny didn't pick up on the pattern at first. But it was definitely there, if he wanted to look for it, and he was a fucking cop, so of course he looked for it. He always looked for things like that; patterns of behavior told you important things about suspects, victims – and yeah, even your own family, which he and Rachel had screamed at each other about once or twice before the end. But Steve didn't have a lot of patterns, being kind of a looney-toon and the kind of guy for whom unpredictable was more a lifestyle than an adjective. But he did have them, and Danny liked finding them, picking them out like threads from the chaotic tangle of yarn and shoelaces that was Steve. Like the fact that Steve was a sucker for a kid who'd lost his father, or that when they fought, Steve was always the first one to apologize, even when it probably really should have been Danny, or the way he always had to bring up the worst case scenario even when he didn't think it was remotely plausible. Just the way he was. And they all said something important about Steve, so Danny kept looking.
He closed the door behind Grace and Rachel and barely had time to turn the lock before Steve shoved him against the door and took his mouth in a kiss so possessive, so demanding, that Danny half expected to find Steve's name inscribed on his tonsils when it was over. Steve pressed into him and Danny could feel he was already hard inside his jeans. Steve humped against him a little, and Danny groaned low in his throat and knew if he didn't do something they'd come in their pants, rutting against the door like two horny teenagers.
"Upstairs," he said, but Steve shook his head and ground against him. Danny was getting hard, too, his jeans uncomfortably tight across the front and when Steve rubbed against him he thought he was going to embarrass himself. "Fine," he said as Steve took his mouth again in a searing kiss. "Fine, okay. Pants. Take off your pants, McGarrett."
Steve's hands fumbled at his waist and undid his jeans, shoving his hands inside Danny's boxers and pushing them down over Danny's hips. Danny hissed as the cool air hit his cock, then he was shoving at Steve's clothes, pushing his shorts out of the way and cupping Steve's cock with his hand. He was rewarded with a heartfelt curse and Steve pressed him into the door again.
Steve bit down on Danny's shoulder and sucked hard, leaving his mark where Danny's shirts would hide it from everyone but the two of them. "Do have any idea what you do to me?" Steve demanded as he ground against Danny. "Do you have any idea how fucking hot you get me?"
"The Daddy thing really turns you on that much, huh?" Danny managed to gasp out.
Steve froze against him for a moment and Danny had a long second to worry he'd embarrassed Steve, said the wrong thing at the wrong moment, then Steve yanked him away from the door and practically threw him down on the couch before he hit the ground between Danny's legs and leaned in to swallow him whole.
Danny shoved his fist in his mouth to bite back his shouts as Steve sucked him down. He tangled his fingers in Steve's hair with his free hand, pushed Steve down on his cock, fucked that gorgeous mouth. Steve's hands were on his thighs, but they weren't holding him down. If anything, Steve was encouraging Danny, staring up at him through his lashes as he suckled. Danny lowered his hand, uncurling his fist, briefly noting the bite marks he'd left in his own skin, and brushed his fingers over Steve's cheek as it hollowed with each suck. He traced Steve's lips where they were stretched around his cock, shivered as he felt Steve's tongue curl around the length of him. He cupped Steve's face in both hands and gently urged him back. Steve pulled away until just the head of Danny's cock was in his mouth, then Danny pulled him closer again. Steve grinned around his length as he obeyed, swallowing Danny down and pulling away, letting Danny's cock slide in and out of his mouth, slick and shiny with Steve's spit. Danny could feel his orgasm building deep in his belly. Steve hadn't touched himself once, but Danny caressed his cheek and said, "Don't come. Not yet."
Steve stared up at him with dark eyes and he swallowed deliberately around Danny's cock. Danny shuddered and Steve pulled back, released Danny's cock with an obscene, wet sound and rubbed his face against the length of it. Saliva and precum slicked his lips and his cheek and Danny groaned low and deep and scrabbled at the couch cushions.
Steve licked the head of his cock, mouthed gently at his balls and nipped at the inside of Danny's thighs. His hands were hard on Danny's hips now, holding him in place as he sucked at the head of Danny's cock like it was a toy. "Come on," he said, letting Danny slip from his mouth. "You're close. Let it go. I want you to give it to me. I want to taste you, baby. Let me taste you."
Danny shuddered and shook and Steve swallowed him whole just as orgasm hit him, suckling him until he'd spilled every drop and lapping him clean. Danny slid off the couch into Steve's lap and wrapped his arms around him. Steve held him close while Danny came down off the high.
"Does it freak you out?" Steve asked finally. He was rubbing Danny's back, but he pulled back at little so they were face to face. "I mean – it's probably weird for you. It's not –" Worry flashes across his face so suddenly, so honestly alarmed that Danny is briefly concerned. "It's not Grace, Danny, I swear to-"
"Don't be stupid," Danny said. "If I'd thought that I'd have fucking killed you, not had sex with you. And it's not weird. I don't – I guess I don't really get it, but it doesn't bother me. You don't want me to spank you and ground you or anything, right? You're not going to start calling me Daddy while we're having sex or anything, are you?"
Steve laughed. "Oh god, no. I don't think I could do that with a straight face, anyway. No. It's just – it's not a sex thing, really. You're just. You are an amazing father, Danny. It's part of what makes you who you are. And I love that about you. And yeah, it kind of turns me on a little."
"A little," Danny echoed dryly, because he'd noticed the pattern and Steve really did get incredibly affectionate when it was Danny's weekend with Grace.
"A lot," Steve conceded. "More than a lot. There's a lot in you to admire, Danny."
Steve tugged him closer until they were lined up cock to cock and started to rock against him. Danny was still limp and spent and he wasn't getting it up again this soon, but it felt good to have Steve's cock alongside his, moving against his sweat-slick skin, nudging his own cock with every little thrust until he shuddered and spilled himself over Danny's groin and stomach. "I love you," Steve said, breathless as he panted against Danny's throat and his semen dried on Danny's skin. "There's not anything about you I don't love. Maybe your ties. But everything else is a definite turn on."
Danny was starting to get that. And he was starting to be more than relatively certain that the reverse was true as well.