Using sex to sell IT services really turns me off.  It makes me think to myself:

“Is their service so poor, that they need to get my attention some other way.”

I’m sure Domain Names you will get people who do think it’s appropriate for you to advertise this way, as you keep doing it.  Just like America’s GoDaddy:

If you’re looking for a domain name register, I can recommend www.mydomains.com.  I’ve used them for years.

And they don’t need sleazy ads to get my business.