Married women, whether they are cheating on their husbands, cuckolding a knowing/aware husband, with, or without his consent/support, or who've empowered themselves as a "hot wife" are the most fascinating, sensual, and erotic.
For me, (I don't consider myself a "bull," and I hate the label), seducing a married woman is the most intensely erotic thing there is, aside perhaps from enjoying having one's own wife fucked. Knowing I've got her hot enough to break her vows, enjoy sex with a man other than her husband is a huge power trip - an ego boost almost like some sort of .......