(Average+) How Not to Summon a Demon Lord

Series in one sentence:
YES YES, BEST FRIEND DADDY, FILL ME WITH YOUR MAGIC, AHUEEEEE!

Series in more sentences:
An anti-social boy suddenly finds himself reincarnated as his in-game character in a world similar to the online RPG he played just the day before. Summoned by two girls from that world with the intention to enslave him, the enslavement spell ends up reflecting back at them, making him their master instead. Even so, the world residents quickly learn that this overpowered demon lord of mysterious origin is not that bad, despite him roleplaying as a villain.

I've watched alot of video game animes now, and I'd say this is the best one so far. Then, why the low rating?

I liked the story and the characters, but both were defiled by the random perverted, sexual moments and costumes. I don't understand why this happens so often in animes. This would've been a FANTASTIC series for all ages if they just left that shit out, but who would show their 12-year-old an otherwise cool series that takes every opportunity to show erect nipples and inflated breasts?
Why do we have these semi-sex scenes and weird romances between the three main characters if the anime argues they're just tight friends? Why is the main character fingering his friends?! Why does Japan keep doing this?

I'm honestly sad by how the show managed to decrease its own value. Having that said, check it out if you can ignore the weird scenes. Or are into that. There is real porn you can find on the internet, though.