Appearance
Are Sin's eyes always the same colour?
Does Sin have any notable scars?
Does Sin have any piercings?
Does Sin have any tattoos?
How does Sin get their hair cut or styled? A professional? A friend? Do it themselves?
How does Sin keep their fingernails?
If Sin could wear any fashion imaginable, how would they choose to dress?
Is Sin missing any teeth?
Is Sin tall, short, or average for their species or culture?
What does Sin smell like?
What is Sin most often seen wearing? Are they dressed that way because they like it, or because it's a uniform or status indicator?
What is Sin's favourite thing about their own appearance?
What length does Sin prefer their hair? Do they get to wear it that length?
What sort of underwear does Sin wear, if any?
Psychology
Sin: +5 disapproval! What word was said in their presence?
Describe one of Sin's dreams or nightmares.
Does Sin believe the ends justify the means?
Does Sin have a good poker face?
Does Sin have any bad habits?
Has Sin ever witnessed something that fundamentally changed them?
How does Sin act, when they're afraid?
How does Sin act, when they're happy?
How does Sin act, when they're upset?
How does Sin change on formal occasions? Do they dress differently? Speak differently?
How does Sin deal with being approached by new people?
If Sin could forget one thing, what would it be?
If Sin could pretend something was true and get away with it, what would they choose?
If Sin is not already a villain, what would push them into it? Alternately, if Sin is a villain, what might trigger a redemption arc?
Is Sin at peace with who they are? What would they change?
Is Sin introverted or extroverted?
Is Sin patient or do they anger quickly?
Is Sin sentimental about certain possessions?
Is there any event Sin is struggling to get over?
What does Sin like least about themselves?
What does Sin like most about themselves?
What is Sin insecure about?
What is Sin's biggest fear?
What is one thing Sin is proud of?
What is one thing Sin refuses to talk about?
The time, as a kid, that he gave a bully a fear-induced heart attack, and the guy died. He's been a lot more careful about the words that leave his mouth for the rest of his life.
What is the most ridiculous fear Sin has?
What keeps Sin going?
What makes Sin think of home?
What non-obvious thing would make Sin sad?
What would Sin be grossed out by?
What, if anything, has Sin fled instead of facing?
Where does Sin consider home? Is it actually where they live?
Preferences
Does Sin collect anything? Do they show off their collection?
Does Sin enjoy outdoor activities?
Does Sin enjoy reading? Do they read quickly?
Does Sin exercise regularly? Do they enjoy it?
Does Sin have any guilty pleasures?
Does Sin like camping?
Does Sin like the beach?
Does Sin prefer showers, baths, or something else?
Does Sin prefer to sleep in warm or cool environs?
Given a choice of any animal, what would Sin have as a pet?
How does Sin feel about conspiracy theories?
How does Sin feel about heights?
How does Sin feel about thunderstorms?
How may pillows does Sin sleep with?
What are five things Sin dislikes?
What are five things Sin likes?
What are four things that make Sin happy?
What can always make Sin laugh?
What chore does Sin least like doing?
What does Sin admire in others?
What does Sin do for fun?
What is Sin's favourite colour?
What is Sin's favourite non-alcoholic beverage?
What is Sin's favourite piece of clothing?
What is Sin's favourite place?
What is Sin's favourite scent?
What is Sin's favourite season? Why?
What is Sin's most prized possession?
What is one thing Sin is trying to get rid of? How have they failed, so far?
What is one thing Sin wants? Not their greatest desire, but something they'd like.
What kind of music would Sin listen to?
What kind of shoes does Sin prefer?
Whatever goes with his outfit, honestly. Man's got like ten pairs of shoes, several of them in the same styles but different colours. Generally, though, he wears riding boots, because they go with most things -- brown or black depends on what else he's got on.
What light level does Sin prefer to sleep in?
What literary genre does Sin absolutely loathe?
What literary genres does Sin prefer?
Where would Sin most like to live?
Food
Does Sin cook well? Do they cook often?
Does Sin drink coffee? If so, how do they take it?
Does Sin have any specific memories involving food?
Does Sin like spicy food?
Does Sin like sweet food?
How many meals was Sin raised to expect in a day? How many do they actually eat?
What culture, region, or style of food does Sin prefer? Is it one they grew up with?
What does Sin like for breakfast?
What does Sin like for dessert?
What food does Sin really hate?
What general diet does Sin follow -- are they a vegetarian? do they keep kosher? do they just eat anything that's put in front of them?
What is Sin's favourite food?
Did Sebastian cook it? It's Sin's new favourite food. He's particularly fond of Italian food in general, and anything that's like 50% cheese most of all. He will fight you for the stuffed shells that stuck to the edge of the pan.
What sort of tea does Sin like, if any?
Potions and Drugs
Has Sin ever been drugged against their will, or without their knowledge?
Has Sin ever hallucinated? Was it intentional?
How does Sin feel about recreational drugs? Do they have opinions about any specific ones?
How does Sin handle alcohol?
What is Sin like when they're drunk?
What is Sin's favourite alcoholic beverage?
Health
Does Sin get sick easily?
Does Sin have any disabilities that aren't immediately obvious?
Does Sin usually see the same doctor (or other healthcare professional), or do they just see whoever's available, when they have a problem?
Has Sin had any memorable serious injuries?
Has Sin recovered from any illnesses that are considered life-threatening, in their world?
How does Sin sleep?
How much does Sin sleep, versus how much they'd like to sleep?
If Sin has gotten sick, what are they most likely to have caught? What symptoms would they most likely be suffering?
Is Sin allergic to anything? How bad?
Society
Are there any rumours about Sin? Are they true?
Does Sin get along with animals, in general? Do specific animals prefer them? Do some animals dislike them instantly?
Does Sin have a reputation for something?
Does Sin have any aristocratic or academic titles?
How does Sin feel about parties? Are there any types of celebration they prefer? Types they'd prefer not to be present for?
If Sin is from a culture with astrological traditions, what is their astrological sign?
If Sin were to be remembered for one thing, after their death, what would it be?
Is Sin envious of anyone? Why?
Is there someone Sin tries to protect?
What does where Sin lives say about them, their family, or their social status?
What nicknames does Sin have?
What's one time Sin has helped someone against their better judgement?
The first time he slept with Sebastian, which was the first time Sebastian had ever seriously considered himself and sex in the same sentence.
Who does Sin dislike, and why?
Who does Sin want to make happy?
Who does Sin wish would take better care of themselves?
Would Sin be viewed as good, evil, or just ignorable by the society they live in?
Family
Does Sin get along with their family?
Does Sin have any siblings? Do they get along?
Does Sin know their biological parents? Who were they raised by?
Does Sin remind people of an older family member?
Is Sin familiar with their extended family? How close are they to family members beyond siblings, parents, and grandparents?
What is one bad memory Sin has of their parents?
What is one good memory Sin has of their parents?
What unrelated people does Sin count as part of their family?
Friends
Did Sin have many friends as a child? Do they still have any of those friends now?
Does Sin have a lot of friends, or just a select few?
Does Sin have any friends who get them into trouble?
How would Sin's friends describe them?
Is Sin liked or just tolerated by the people they spend most of their time with?
What is Sin looking for in a friend?
Where do Sin and their friends hang out? What time of day do they prefer to go there, and why?
Who is Sin's best friend?
Romance
Does Sin engage in traditionally romantic behaviours?
Does Sin fall in love easily?
Has Sin ever considered getting married? What are their thoughts on it?
Has Sin ever engaged in hopeless pining?
Is Sin in a romantic or sexual relationship with anyone? What is their partner like? Or, why not?
Is Sin promiscuous?
What does Sin find attractive in others?
The ability to tell him 'no'. Not just the desire, but the willpower to stick to it. Unfortunately, he does accidentally impose his will on others, no matter how much effort he's put into not doing that.