not if it's dont with someone you love and been with for a while.
that is my definition ....so make a date after sex the first time ...and remind her you are looking after her reputation....its always better teh second time around
no, only if it's a random hookup with a stranger or with someone you haven't been seeing
One night stand has no hung to do with first time. It means a one time fling aka one time casual sex done at night oerhaps