All Aboard The Love Train - TG Story (Patreon)

Falling victim to an alien scholar's 'prank' as two best friends emerge out the other side of a love tunnel attraction as a boy-girl pair, the two struggle to get used to their changed dynamic, all while their invisible observer watches in the background, eager to see how the earthlings adapt with a slight bit of worry for the possibility of things going very wrong once friction begins to show in the former best friends relationship...

Originally supposed to be a caption but something I ended up expanding upon x-x