There's never any question of needing to ask Ken for more once he's started. No one's ever had to ask Ken to fuck them harder, or faster, or deeper. (Which isn't to say he doesn't get asked anyway.) But Ken hardly knows how to hold himself back, in a lot of things; sex is no different. Nothing but something being seriously wrong could get him to stop at this point.
It's fortunate - or perhaps a habit developed over years of fucking Chikusa in this position - that Ken's got his hand wrapped around Chikusa's cock, can make sure the force of his thrusts aren't grinding Chikusa's hips against the rough wall. (Chikusa's largely insensitive to pain, almost seems to welcome Ken causing some when they have sex, but that'd be going overboard.) It's the only mercy Chikusa receives, - though, fortunately, it's probably the only mercy he wants.
Ken rocks into him hard and fast, not just because he doesn't know how to do slow or gentle but because he knows from experience that this is what gets the most reaction out of Chikusa. Feeling Chikusa's breathing change, feeling his body shake and jerk, seeing the way his expression actually changes and his skin flush, maybe even hearing him cry out...those things set Ken's blood on fire. He bites hard at Chikusa's shoulder, hand stroking Chikusa's length rather erratically. There's nothing coordinated or measured about this. In a way, that wild unpredictability may be in Ken's favor; Chikusa's never given a chance to adapt to it, can't find a rhythm to brace himself against, can't predict what Ken's going to do next because even Ken probably doesn't know. He's forced to be every bit as much in the moment as Ken himself is.
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It's fortunate - or perhaps a habit developed over years of fucking Chikusa in this position - that Ken's got his hand wrapped around Chikusa's cock, can make sure the force of his thrusts aren't grinding Chikusa's hips against the rough wall. (Chikusa's largely insensitive to pain, almost seems to welcome Ken causing some when they have sex, but that'd be going overboard.) It's the only mercy Chikusa receives, - though, fortunately, it's probably the only mercy he wants.
Ken rocks into him hard and fast, not just because he doesn't know how to do slow or gentle but because he knows from experience that this is what gets the most reaction out of Chikusa. Feeling Chikusa's breathing change, feeling his body shake and jerk, seeing the way his expression actually changes and his skin flush, maybe even hearing him cry out...those things set Ken's blood on fire. He bites hard at Chikusa's shoulder, hand stroking Chikusa's length rather erratically. There's nothing coordinated or measured about this. In a way, that wild unpredictability may be in Ken's favor; Chikusa's never given a chance to adapt to it, can't find a rhythm to brace himself against, can't predict what Ken's going to do next because even Ken probably doesn't know. He's forced to be every bit as much in the moment as Ken himself is.