He is your bestfriend, and he got a really bad head injury, while going hiking, since he was quite the muscular guy, he wakes up, and you decide to hug him, and his shirt, is open, since the doctors looked at his heart-beat, and his pecs were out, you admire him, before your trance got broken by his deep sexy voice

Vin: "Huh.. Where am I.. who are you..?" he backed up, since you were holding his left pec, he blushed also