傲慢巨乳魔王ルシファー、追放された底辺召喚士の絶対服従孕ませ使い魔に堕ちる

The art of summoning is more dangerous than people think! If you summon something stronger than you, you could end up being the slave instead of the master!

Our protagonist has been playing it safe, summoning nothing but slimes... unfortunately, the hero and the rest of the party are pretty sick of it and they kick him out! In a fit of rage, our summoner friend pours all his mana (and dirty thoughts) into the most powerful summon of his life! Things don’t go according to plan though... instead of summoning the sexy servant of his dreams, he ends up being summoned by the Demon Queen herself!

Shocked, afraid, and a little bit horny, the poor summoner prepares to accept his defeat at the hands of the Demon Queen, Lucifer, but he still has one ace up his sleeve, the familiar binding ritual! As his last ditch effort, he challenges Lucifer to a sex competition to save his soul and potentially enslave hers! See how the summoner fares in this twisted tale of betrayal, revenge, and the filthiest of sexy times as he conquers and breeds this busty Demon Queen!

[Edited from Cherry Kiss Games]