jen and pam were both on the rag, and horned up for eachother, so they got into scissor position and bumped the bloody knuckle
when 2 girls are each on their period and scissor each other
"jen and pam were both on the rag, and horned up for eachother, so they got into scissor position and bumped the bloody knuckle" What is the definition of "bloody knuckle"?