Well im all for the harem... but since his married still, its kinda difficult, cause he'd have to get the wife to be ok with it. Knowing how nasty she can be, that be very very hard. Which why I have mentioned its easier if he was divorced.
But that was some great skinship... keep it coming.
And goddess lol.. Makes sense why she kinda appears as a ghost. Thats top qualty girl right there........ if you're not kazuma.