Absolutely untrue! Sex is only part of the mix, you have need
1. the spirit of sharing,
2. good communication and
3. financial stability
to survive a relationship.
well, if both sides are being independent, good sex is enough to sustain a relationship.
talking about love is too heavy when you are not able to control your own life. why not just
enjoy the pleasure
If 2 people enjoy several times very good sex experience, i believe some relationship has been built up already, if they REALLY know what sex is and can enjoy it.