Somewhat unusually, I am a female regular customer of San ling. I thought I would shed some light for any other women who may be curious about trying it.
In short, san ling is a little grotty, but jenny, linda and lilee will happily do cunnilingus if you're feeling like dabbling. Im actually straight, but occasionally it takes a Chinese lady's skilful tongue to sort me out. And they are really really good at it.
Lilee is actually the most skilful, then linda, then jenny. And if you're so inclined, Jenny well do a little bit of rimming to get you in the mood.
In my experience. It's hard to find providers in London who will service females. No such problems at an ling. Lilee and linda are in Swiss cottage, Jenny in Baker Street. Just book a massage, get naked and then just ask. Simple as that. £30 tip and well worth it.
Hope that helps someone. If it does, please post about your experience here.