At the moment sex combat could really do with an overhaul, it's not even the fact it has a huge weakness in some enemies being completely immune, but when the going gets tough against enemies they can affect, recommended tactics all suggest using something that is unrelated to the actual build. Companions, traps or the deep one's summoning abilities.
Basic suggestion would be move juicing to the Tough tree and rename it something like "struggle cuddle" and give the nympho tree a ranged option to initiate sex attacks so you don't need to walk right up, maybe weaker dance effect for aoe sex attacks and for enemies that are immune, the ability to recruit other enemies you defeat with sex attacks or bolster existing companions with dances, whatever's easier.
At the moment I would not recommend the playstyle.