For some reason for me this has never been a priority for me, however one Lady I've seen on many occasions virtually demanded I came in her mouth on my first visit, who was I to disappoint!
Every subsequent meeting would involve CIM, facials, even a bit of snowballing, a first for me!
Anyway, Nathalie Love in Knightbridge, loves receiving a facial, tongue out no flinching or backing off, just keep it out of her eyes and she's more than happy!