When a man ejaculate in a asshole and the receiver takes a shit right after and the semen is surrounded in the faeces and proceeds to snack on or after
In a threesome (consisting of at least one guy), the guy ejaculates into one person's butthole, then the third person proceeds to eat their ass and lick out the cum, like eating the cream out if a twinkie.
"So Daniel, how was your night with Jessica and Amy?"