It’s the scent, the taste… I started out with my moms. Her divine pussy set the bar for how I believe a female should smell and taste. The memories of getting them after she’d worn them all week, the pasty gusset, pure heaven. It’s knowing you’re smelling her scent and tasting her without her knowing, it’s even better once she finds out and approves.
Or smelling and tasting a pair from a woman you want badly but can’t have, makes for some of the best busted nuts ever. The drive and desire is so strong, the fantasies, you almost can’t control the urge to squirt your load. Not a “kink” that everyone is into or would understand but definitely more common than one would think.