A thing 

At times, the moans of Birkin/Bardot are the focus of the song and sound similar to a female orgasm.

Firstly, the moans of a male can't sound like female orgasm.
Secondly, come on, sound similar to a female orgasm? Who can determine how female orgasm sounds? I have heard literaly dozen of 'acoustic versions' of female orgasms, so there ain't one specific 'omnipotent' one. Fix that, or I shall in time.