ME: Sexual dimorphism

I've always wondered why male quarians have more elongated masks than the female ones [link] . Then the Great Revelation came and we learned that Quarian's faces are human-like and I kept wondering... why do males need a different mask?
This is my personal explanation.

_{And yes, as my Shepard didn't romance Tali, he saw her face on Rannoch for the first time.}

---

Other "Mass Effect: Priorities" strips:


_{Oh, and yes, some noseporn appreciator have already accepted this headcanon...}