Haha... Final Fantasy XV's Night Exploration Battle theme would have played in the background if Lin were the one who took my virginity! :o
But yeah, it's far from being as exciting as you guys think. She was just as "strange" as Kagari. For instance, she didn't hesitate in giving me her number once I shew her my picture, but the moment I suggested I would go seal our "business" proposal at her home rather than in the street for forgiveness because I slightly irritated her at some point, she said "ok. Rendez-vous ŕ la gare"/at the station. There were other coincidences, as well. Full story soon.
Also, to address your Lightning's point... I don't know if you got to see NORA's random/TheOneWingedAngel's post before Parandus/Kraid nuked CorvoSol's thread after Snow Villers++/Cookies summoned him/spammed the Report button, but he was essentially telling me I should back off Terrina since she is already taken; that's why I use the Serah/Claire relationship to describe ours. For the record, Terrina is just Cidney in Final Fantasy XV, and it's not even certain we get to see her ever again after Duscae.
As for Lightning herself, simply put: she isn't meant to make love with. The quintessence of the boy-ish female lead, in other words. I personally really enjoy the character, but I can see why Kagari doesn't, by the same line thought she would understand why I am not a huge fan of Tidus. He is too much of a [cigarette] in my book.