Two friends with a mutual friend who is obsessed with her waxing and waning boob size. The constant updates and bulletins regarding above-mentioned boobs are the cement and foundation of the relationship. Sometimes the boob friends may also become real friends, but the boob experience will always remain the core. Boob friends are sometimes also known as "bosom friends", which is an alternate definition of the more common usage of the phrase.
Friends by boob.
The boob friends occasionally play a drinking game known as "bosom shot" following every self-mention of the current boob size.
good friends , who for now don't want to get too serious , just taking things slow. But also want the benefit of having sex.
I want so badly to be sexual friends with a {beautiful} {woman} i recently met , we are at {times} in our lives that this would be a great way to start out
The relationship between a man and woman when they (usually the woman)decide to not take it beyond the platonic level. A woman's request to be "just good friends" can come as a disappointment to the man, who's ultimate goal is usually to have sex with every woman on Earth.