One night love, go for it (if it is
your thing!)
Casual sex may be empty of the strong affection that may exist
between a couple.
But there are other kinds of affection.
It is love to want to give pleasure to the other person and to enjoy
doing so.
It is love to do your best to protect yourself and the other person
from diseases and unwanted pregnancy during sex.
There are those who say that only those who deeply love one another
should have sex.
But even the warmest love can fade and lessen and do they ask the
people in a relationship where this happens to refrain from sex
then?
Confining sex to committed relationships is no guarantee that the
sex will be good. It is no guarantee that the sex will not spread
diseases.
If we are going to forbid casual sex we will have to forbid
masturbation.
If casual sex causes problems then demonising it as a grave sin is
not going to help and is not an option.