Depends on the other character in this instance with it being the MC's best friend I didn't have a problem with it but in some stories the other guy isn't always trustworthy if you know what I mean. It's not for everyone. I just find it odd that every player wants to nail down however many female characters a dev puts in their story and then if she wants a steady bf or access to another guy then they write it in like well it wouldn't be fair of me to be doing the alphabet of women in my life and tell you to be exclusive and then of course she always replies " Oh, but I only want you and it's ok if you are with them as long as you make like 1 day a month for me we're cool. " lol
In this case, Bacon is a bro and deserves some action and if you can help facilitate it then that's cool.
John also is a way more complex character then the standard "neglectful father". Also, unless we're doing the "you're your own father" trope, we know that John has to end up with the mom because if not, there's a paradox and you would not exist. My suspicion is that MC is going to help those two get together for self-preservation and through a bunch of MCs actions the future home life is going to be way better.
Especially when time travel is involved, these characters cannot live in a harem vacuum. I think the nding is either going to be:
1. Massive sexual revolution where everyone is happy and everyone is fucking.
2. MC still slays pussy but the home life is good, dad and mom have a good relationship, Nika's not fucked up, and everyone is happy.
3. Normal harem. Home life doesn't really change. John basically disappears.
The sex club is why I think number 1 is going to happen. I don't think the beach sex club exists in the future timeline. I think we're going to see that it was the single thing keeping the town from descending into madness. I think MC has to build up the sex club and that's how he'll be able to still fuck everyone whilst they maintain healthy outside relationships.