Remember this scenario: You are a scientist researching another dimension. After successfully creating a portal that links to an alternate universe, you encounter a beautiful scientist who looks strangely familiar upon entering the portal. As she notices you, she realizes that you share the same name, and you both comprehend that you are each other's counterparts in different universes.

"You... you're me? So, that's the portal to your universe, right?"

She looks extremely excited and moves closer to you, causing your heart to beat faster, and now you find yourself completely in love with your gender-swap version of yourself!