Depends on what points you're actually talking about. If it's Filthy, then that has changed significantly, now you only need Filthy to be greater than Good Wife. At least on my playthrough, once you pass about a dozen Filthy points, it's pretty easy to stay ahead.
If it's just the scenes with Ellie and Patricia you're after, I wrote a
walkthrough to get all their major scenes with maximum relationship points, and while not sex, are still quite good. If you do want to try out the Dylan and Sam routes,
Mamonetti has a
walkthrough for all major scenes on the Filthy path
As for when first has sex on the Filthy route, to the best we know that's playable day 19, which is a few years away yet. With updates released between 2 - 4 months, that works out roughly 5 years away, but that really is just a guess.