Nothing much of late most everything is a trigger. In the past it's been women that don't look stereotypically white American. Also, not being overly sexual or promiscuous. Whispering In my ear without making it tickle (very difficult, and if you can pull it off you are a goddesses). A good sense of humor, confidence... our couple's t (but my wife feels the same way about her, only mine has not lasted). Then there's the "other" stuff like knives and blood (still trying to figure this out... very weird to admit).

My only turn - on from a guy would be Morgan Freeman's voice...