@passeriInformal

it's actually super interesting because the sound "th" doesn't really exist in russian (if you look at how heavy russian accents sound, most russians struggle with pronouncing 'th', usually making it either closer to t or s, or z). instead lisping is usually conveyed with sh replacing s, and zh replacing z. so sollux's intro still states that sollux has a lisp, but it's meant to be something you imagine in his voice rather than something directly conveyed in his quirk.

and that one time he gets his teeth knocked out and then karkat puts them back and he speaks with a lot of "th"s as if his mouth if full, in russian that is conveyed with an "f" sound replacing all the th's, fun fact.