Good method to test for active sex animations?

[Fredas]

Just about the last thing I need to pin down for my mod before I start tweaking it for perfection.  Looking for ways to test for SexLab / ZaZ / Estrus (and anything I may not be aware of; feel free to suggest) animations taking place.  Ideally, without having to marry my mod to SexLab or the rest, since I'd like to retain the option to allow users to make use of it separately from other mods.  But I'll take what I can get.

 

[WaxenFigure]

This should work

 

Faction SexLabAnimatingFaction = Game.GetFormFromFile(0xE50F,"SexLab.esm") as Faction)

...
Bool Function IsHaveSexLabSex(Actor IsHavingSex)
    If (SexlabAnimatingFaction == None)
        return false
    else
        return IsHavingSex.IsInFaction(SexLabAnimatingFaction)
    EndIf
EndFunction