one of my closest friends has recently told me a secret about which she is extremely worried and repentful. her periods were started with quite little spotting and the couple had oral sex. the girl totally forgot about her menustration. but right after the act she got to remind herself that they did wrong.
now she wants to know the kaffarah.
please do not consider it as a troll PLEASE
she cannot contact any mufti right now coz she does not know anyone directly
please help under the islamic rules
Your query is not clear. However, answer of query is mentioned below.
"What they done, is a forbidden act and repentance (touba) and expiation (kuffarah) both are mandatory. He/she may pay Kuffarah of one Dinar or Half Dinar (1 Dinar is equal to four & half grams of Gold approximately), and must also do touba with aim that they will never repeat/do such forbidden act again, ever.