I saw that you love the idea of size dif, with Grog filling one of the gnomes, and I raise you a scenario: Scanlan insisting he can take all of Grog, and Grog keeps asking him if he's sure cause he doesn't wanna hurt him, but it just becomes like a challenge to Scanlan the more he asks. But as he's being filled, Scanlan starts to realize that he made a grave error, but refuses to back out now.
anon, i’d probably give one of my fucking eyeballs for someone to write this, like. jesus. i’m so thirsty for one of the gnomes trying to take grog (especially when he’s got the knuckles on) like please
just scanlan panting and wheezing as he tries to rock himself down onto grog’s dick, take more of it, his eyes wide and half rolled up into his head. and it feels so good, but it also aches, and he can already feel the bulge of grog’s dick distending his stomach when he presses a hand to it - but he’s only barely got the head of it in, and he already feels obscenely full, but there’s still a full foot of cock left to go and he’s not got a fucking clue how that’s all going to fit.
but like hell is he going to back out now, so he keeps going, despite the raw stretch of his hole around the thick cock inside him, despite the way he’s near-sobbing with how overwhelming it is as he slowly slides down. and when, after probly like twenty goddamn minutes of work, he’s finally settled on it down to the root, finally has grog’s balls against the curve of his ass, his eyes are rolled all the way back into his head and he’s only still upright because of grog’s hands supporting him. his stomach just bulging with the massive cock he’s managed to get inside him, and he can barely breathe, he’s so full, let alone move - just limp in grog’s grasp, clenching weakly around the huge length inside him and making these faint whimpering noises.
(and then grog, realising there’s no way scanlan’s going to be able to ride him in this state, carefully curls a hand around scanlan’s upper torso and starts physically lifting the gnome up and down on his cock, basically using scanlan’s limp, overwhelmed body as a cock sleeve as scanlan makes the sweetest noises and just twitches, cock hard and leaking against his stomach. and when grog finally comes, scanlan’s stomach bulges out even further, swollen with the weight of come being pumped into it, shot into him so deep that it’ll be days of walking around with a heavy, curved stomach before it all finally leaks out.)
(and don’t even get me started on grog using the titanstone knuckles whilst inside scanlan, or on the prospect of goliaths having knots…)