For anyone wondering, yes, it's a bundle, yes they're free. It will add everything to your account, so keep in that in mind if you're worried about what other people think of your games library.
However, GOG does also have the option to hide games from your library, so do with that information what you will.
I am personally very strongly of the opinion that porn is morally neutral. Porn can express bad themes or spread bad ideas in the same way that any other media can and porn can be manufactured in ways that exploit workers, just like any other media can. But porn simply being porn doesn't make it bad or embarrassing. We don't have to justify porn by defending its artistic merits; porn can have amazing themes and ideas and powerful messages, and porn can be nothing but a bunch of sex that's there to get you horny and neither has more or less inherent value than the other. There's nothing wrong with movies that exist primarily for action and spectacle (see The Raid, one of the greatest movies ever made) and there's nothing wrong with games that exist primarily to be a bunch of insane over the top violence driven by nothing but rule of cool. If you think those things are OK, but draw the line at sex, maybe sit down and have a think about why that is, and where you learned those values. No judgement, just an encouragement to always test your own thinking for consistency.
What a lot of people forget is that for the vast majority of people, this is a progression. The reason petitions work is because they get awareness out there, which leads to more people showing up to the protest. The reason protests work is because that's where you sign people up to the orgs. And the reason all of these things work is because the people on the other end understand that if there are enough people petitioning or protesting, some percentage of those people will, if pushed hard enough, resort to more direct action. A petition isn't a plea, it's a threat. A protest isn't a complaint, its a show of strength. If people show up, those people can then be called upon for the next step, and the next. And when things go right, the steps further down the chain aren't needed, because the threat is enough.