An unfortunate (or deliberate?) choice of words.

I'm a dirty, dirty lady, it's true, but i can't help noticing a masturbation reference at the end of this ad for thrush treatment. What's the verdict? Deliberate, or all in my grubby little mind?

http://www.canesten.co.uk/latest-ad.htm

Answers on a postcard, or in comments.
WG