Champion of Venus

Ambrosia - the essence of lust.

You play as Rayne: a waste of space, a layabout and a pervert. She's spent her adult life depending on her supermodel sister, Tayla, for everything from her unhealthy diet to her 24/7 internet addiction.

Rayne's slovenly lifestyle is about to change.

Who will claim the Throne of Eros?

When Tayla moves out, Rayne must fend for herself - but how's a girl supposed to pay rent when she's suddenly sucked into an ages-old conflict between the gods of lust? Chosen by Venus, she must confront the other gods' champions in bouts of sexual domination. But despite her scandalous search history, Rayne's a virgin, and she needs to learn fast if she wants to stand a chance.

For the price of failure is eternal servitude...

Champion of Venus is an erotic visual novel packed with explicit depictions and lurid descriptions of: extremely large phalluses entering shockingly stretchy holes, hot girls with toned tummies, bellies being inflated, guys pounding girls, girls pounding boys, girls pounding girls, milk flowing copiously from enormous juicy mammaries, hordes of tentacles plunging into quivering depths, big vibrating toys, gags and blindfolds, and an enigmatic rat. Your choices determine which scenes are shown and how Rayne's relationship evolves with the various characters.

(It also has vore content but that's completely optional).

Source: Steam Store Description