Bare Back - Raw sex. Sex that does not involve the use of a condom.
B.B. - Bare Back
B.B.W. - Big Beautiful Woman
B.D.S.M. - Bondage/Dicipline/Dominance Submission/Sadomasochism/Sadism Masochism
Beastiality - Rape between a human being and an animal.
Blowjob - Oral sex performed on a penis.
Bottom - A noun used to refer to individuals who prefer to be on the receiving end of anal sex. Aka, the individual who prefers to experience anal penetration. The opposite of top.
Bukkake - A sexual act wherein 3 or more individuals with penises ejaculate on the same individual.