Permissions
4th WALL BREAKING: If it's part of an event and makes sense within that, sure! For the most part though, no thanks!
THREADJACKING: Cool with this! Unless it's obvious it's a private or personal thread. Basically, use your best judgment -- it'll probably be correct.
BACK THREADING: Totally acceptable! Great for establishing things.
MIND READING: Absolutely! Yosuke wears his feelings on his sleeve anyway~
LOCATION SENSING: Sure! Again, within reason. Even if you find him, Yosuke still might lock you out.
TELEPATHY: Go for it! Within reason, of course.
SPECIAL/MAGICAL ITEMS: If it does something significant, like turn Yosuke into a frog (which I would be very okay with), shooting me an IM or PM beforehand would be cool! But for the most part, go for it. :D
FIGHTING CAPABILITIES: He's more fast than he is strong, specializing in quick, rapid slices instead of huge blows. Wind is his specialty and, though it doesn't fry him the way it used to, electricity is his weakness. What's more dangerous is his drive to win, if he feels it is necessary to preserve what he sees as justice or protect someone he cares about. It doesn't improve his chances against your character any, but it makes him tenacious and slow to tire.
INJURY/DEATH: Talk with me first, but I'm pretty okay with this! I'll let you know. :D
WIN/LOSE/TIE: Yosuke will probably lose more than he wins, depending on who he's fighting. If he can outrun them, he's got a much better chance of success...but that also means he might just run away.
MEDICAL/PHYSICAL INFO: Yosuke is a seventeen year old kid who looks the part. He's on the tall side (5'10") and is also very thin, at 127.8 lbs. To put that in perspective with his height, he has a BMI of 18.3 (making him .2 underweight). He eats plenty, but his nervous energy and fast metabolism makes him burn off the calories faster than he can consume them. While fairly stick-ly, Yosuke isn't completely without muscle. However, they're mostly located in his legs rather than his arms -- a side effect of all his running and cycling.
ROMANCE/RELATIONSHIPS: Yosuke will probably try (and fail) to hit on you if you're a sexy girl. If you're cute/adorable, he'll probably just try to protect you. And if you're a gay guy, expect him to be equal parts morbidly curious and friggin' terrified. Overall, I'm very open to romance and relationships with him, as those are things weighing heavily on his mind. He wants to be happy...he just hasn't found anyone who wants to be happy with him yet.
SEXUAL RELATIONS: Yosuke is a virgin (shock of the century), but he wants to change that. However, he's a lot less mentally ready than he portrays himself to be. It should go without saying that, unless previously agreed upon as a Do Not Want encounter, there would be no moves towards sex if the relationship wasn't already fairly far along. Emotionally and, to a certain extent, physically. To put it plainly, Yosuke doesn't put out on the first date (despite how he fronts).
PHYSICAL CONTACT: Depends heavily on your gender, but for the most part Yosuke is okay with this. He's a bit of a cuddler and likes to be closer with people he feels comfortable with. However, it's easy for him to get the wrong idea in a platonic relationship with a girl.
ANY TRIGGERS/SECRETS/FACTS YOU WANT PEOPLE TO KNOW ABOUT: Any mention of dead first loves is bound to make him uncomfortable. He also kind of almost spearheaded the murder of an innocent man, so that could get uncomfortable too if his morals are questioned. Beyond that, he's VERY defensive of his (hetero)sexuality and wants everyone to know he is the straightest straight to ever straight. Calling him out on any of his less masculine quirks is bound to make him flailing to defend himself, inadvertently insulting everyone else in the process. There are quite a few other things in Yosuke's personal quirk arsenal, but they should display themselves naturally as a relationship progresses.