If there's some serious consequence for sleeping around I hope we at least get a chance to clean up our act before the conclusion. I hate PORN GAMES that make you play as a good Christian boy with oneitis for a single girl if you want to see the good ending.
If there's no harem ending, at least let us mess around before we have to commit to a single girl.
That being said, a harem ending that is also well-written and at least somewhat convincing would be the best outcome for me. I know it's not easy though.