How to pleasure an uncircumcised man

I occasionally receive sex questions to answer on my blog. This recent question and its accompanying answer struck me as something I should share with a wider audience:

I can’t believe I’m actually asking this, but I’m kind of desperate. I am dating a guy who is uncircumcised and I’ve never been with an uncut guy before… I have no idea what to do with it. To be honest, I think it looks kinda gross, but I really like him so I want to learn how to work with it and pleasure him. How do I do that?