WSACF
WSACF stands for "Wet Soapy Ass Cheek Fuck". This is when you let your partner fuck your soaped up ass cheeks. This act is mostly done in the shower or bath. See also "WSTF".
Becky - "Paul gave me a WSACF last night. He was so close to slipping it into my ass".
Emma - "You really are a slut Becky".
Emma - "You really are a slut Becky".