Momento "estou mesmo com a cabeça oca"

Harry Burns: You realize of course that we could never be friends.
Sally Albright: Why not?
Harry Burns: What I'm saying is - and this is not a come-on in any way, shape or form - is that men and women can't be friends because the sex part always gets in the way.
Sally Albright: That's not true. I have a number of men friends and there is no sex involved.
Harry Burns: No you don't.
Sally Albright: Yes I do.
Harry Burns: No you don't.
Sally Albright: Yes I do.
Harry Burns: You only think you do.
Sally Albright: You say I'm having sex with these men without my knowledge?
Harry Burns: No, what I'm saying is they all WANT to have sex with you.
Sally Albright: They do not.
Harry Burns: Do too.
Sally Albright: They do not.
Harry Burns: Do too.
Sally Albright: How do you know?
Harry Burns: Because no man can be friends with a woman that he finds attractive. He always wants to have sex with her.
Sally Albright: So, you're saying that a man can be friends with a woman he finds unattractive?
Harry Burns: No. You pretty much want to nail 'em too.
Sally Albright: What if THEY don't want to have sex with YOU?
Harry Burns: Doesn't matter because the sex thing is already out there so the friendship is ultimately doomed and that is the end of the story.
Sally Albright: Well, I guess we're not going to be friends then.
Harry Burns: I guess not.
Sally Albright: That's too bad. You were the only person I knew in New York.

In When Harry Met Sally

Isto até que poderia ser verdade mas sendo que há homens que estão interessados em homens e mulheres interessadas em mulheres suponho que desde que seja esse o caso um homem e uma mulher até que podem ser SÓ amigos (sem qualquer cor involvida), claro que a mulher já não poderá ser SÓ amiga de outra mulher e coisa e tal para o homem. Isto na lógica do diálogo.

Parece-me uma permissa um pouco "agressiva" mas confesso que acho que a partir do momento em que sexo mete-se no meio a amizade altera-se. Não tem que ser para melhor nem para pior, fica simplesmente alterada.

O que eu não acho "obrigatório" é o sexo meter-se SEMPRE no meio. Tenho amigas que são atraentes mas com as quais tal item não chega sequer a ser um item. Por outro lado, há outras que ó valham-me todos os santinhos do controlo sexual e sensual!!

Resumindo, nothing is black and white. There's always some shades of grey!