Lyric discussion by VortexOfLanguage 

Cover art for Let It Bleed lyrics by Rolling Stones, The

It's not about sex on periods! Christ, what the hell is the world coming to? Nobody would write a song about that!

It's about always needing somebody, for whatever reason, be that emotional, sexual, or to talk to. He's offering himself to be all of these things, but maybe without the commitment of a relationship or marriage.