um, this is probably a weird question, but is lucien gay, or bi? >///<

Its not a weird question at all! Especially, because his sexuality was mostly implied up to this point. Lucian is bisexual with a leaning interest in males while he courts ND. But, even when Cloud was around the manner he would find himself smitten by her sensitivity and gentleness. Rin lets Lucian express himself in anyway he likes and supports his bisexuality completely!