Nice sisterly love.

Base +8, Gil T. Pleizure +6, Sumitandord +6, Ganein +7

your faith is strong
so let me corrupt you with your corrupted sister with her corrupted tentacle futa dick

this tentacle monster really went the hard way

Base +45, Spooky Ghost Butts +12, Gaiadrill +10, as102 +15, vkqdhqj +6, Luuuk +6, SpiritOrg -8, Gil T. Pleizure +6, CelestialNightmare +8, ahegaoftw +7, Hardart +6, Ganein +7, darklord1235 +9, and 2 more...

A pretty classical vanilla-y tentacle rape type of plot but it was pretty cute, warmed my heart more than anything honestly

Base +6, Yami no Ou -6, Gil T. Pleizure +6, CelestialNightmare +8, username8969 +6, Ganein +7

イノリハトドカズ ネガイハカナウ

Base +6

"Everyone is dead, but it warms my heart"

Base +10, Der Fuhrer +13, FutaxYuriisBased +6, as102 +15, PregnantWhoreFucker +6, danielwain +9, m0ch4 +24, Gil T. Pleizure +6, CelestialNightmare +8, Sumitandord +6, Ganein +7, darklord1235 +9, ThatOtherYou +6

Somehow the knight became the host of the monster and subsumed its will, so technically as long as she is content with staying in that church with the former saintess it wouldnt be a danger to the kingdom. Basically the knights are running to their death for nothing. They really should know better than the get between lovers lol

Base +6, Luuuk +6, Gil T. Pleizure +6

Nice, saint/nun being fucked and corrupted by demons are truly one of the best ero tropes.
btw, the title kinda sounds like a Metal Gear Rising song's lyric

Base +19, username8969 +6, Gil T. Pleizure +6, Elizraros +6, CelestialNightmare +8, darklord1235 +9, ThatOtherYou +6

@KikiKanri

they would eventually cause the world harm, the sisters say let their children fill the world.

and yeah, those tentacle monster seem like to absorb people, not corrupt or control them ...

only this pair of sister seem to be chosen by monster

Base +6, Sumitandord +6, Ganein +7