Is that.... a bulge?

Tensa said:

Is that.... a bulge?

... Yes. Yes it is.

(So possible futa???)

Maybe an design error: that "zipper line" creates some form of bulge contour. You can see the same design in this other pic.

Pronak said:

Maybe an design error: that "zipper line" creates some form of bulge contour. You can see the same design in this other pic.

artist comment would suggest otherwise

Idee said:

artist comment would suggest otherwise

If you're referring to the "male" pronoun, that's most likely an error by your auto-translate, as the English language defaults to male even for pronouns that are actually gender-neutral in Japanese. After all, the very same comment explicitly also calls her a woman.