What many teenage boys use to catch their spunk in order to avoid creating a mess with their cum. The recomennded ratio is one sock for one ejaculation but not many guys follow this as then they wouldn't have enough socks for even one day in the whole house.
"Oh bro I'm horny again. good thing I stole this sock from my sister, now I can use it as a cum sock."
A sock dedicated to being cummed into, mostly by horny teenage boys, who do this act on a regular basis.
"oh dude I'm horny again, good thing I stole this sock from my sister, now I can use it as a cum sock"