Chaos Beach

Hikaru, a hopeless virgin desperate to finally lose it this year, heads to the beach! But there's one problem: he thinks saying “I’ve got a huge dick” is a great pickup line. Naturally, it goes terribly. Not a single girl is into this awkward guy reeking of virgin energy. That night, he receives a shady letter and a drink from someone calling themselves the Virgin Savior “Drink this and you’ll be overflowing with pheromones. Women won’t be able to resist you.” Feeling mocked, Hikaru chugs it all—and the next day, a transformation begins. Suddenly, his scent is driving girls wild.

[From Steam]