okay first of all oh my god you got them both so so so right, too!! like i 100% agree with your characterization of them both!!!!!!

bo is suddenly incapable of hearing your pleas of stop and too much! and ah! h-hurts! he literally loses himself in it, buries himself in it to the point where is mind is overstimmed as well, unable to concentrate on anything else except for how good you taste and how good he feels. bo doesn’t know when to stop, doesn’t ever want to stop; constantly on the hunt for more, and more, and more, until he’s shuddering violently with every lazy roll of his hips against the soiled mattress, and your feet are on his shoulders, heels digging into the taut muscle and pushing, begging him to stop just for a second, please!

kenma doesn’t even realize how slippery and soggy his hand has become, doesn’t even feel the ache in his stiff wrist from being bent at such an angle for an extended period of time, too engrossed by his game to really care, until your nails are clawing at his flesh and scraping against his skin, until your whines are directly in his ear as you frantically and urgently beg him to stop, until your entire body is ferociously trembling against him. (but he thinks it’s pretty hot that you came so much, that you endured it for that long until you were sobbing into his neck and wailing out the word stop <3)