The Futa-mazing Spider-Woman in a world of quirks(Futa Spider-Woman x MHA harem)

Petra "Diana" Parker was once a scrawny, nerdy teenage girl living in New York. One day, when a mysterious spider bit her, it gave her spider-like powers.

For her entire life, she was a scrawny nerd girl in the closet with a flat chest and decent dick.

Now she's 6 feet tall, one heck of an amazon of a woman, with massive boobs, killer abs, and a massive 27-cm cock that she could probably strangle women with.

One day, a portal opened out of nowhere and took her to a different universe where having powers was common and was called "quirks," a weird name for powers.