In most cases an act of unwelcome sex is no more bother than being vaccinated, so there's no point going on about it as if it werea fate worse than death. With skill and good manners you can avoid having to make the sacrifice, but should you find yourself in a compromising situation largely of your own making, you should stop defending your virtue and start worrying about your maturity. It will give you something to think about while the savage pumper bangs away.