trip,
Yes, you should get tested but as the insertive partner in this brief incident, I agree with Andy and expect you to test negative.
You should try washing your penis with soap in future. Soup is food. :)
(http://t2.gstatic.com/images?q=tbn:WwwqP_Rn1UFRFM:http://blog.clickz.com/campbells-soup.jpg)
(http://t1.gstatic.com/images?q=tbn:XDeFJ01KRqLT-M:http://hazard.com/graphics/Safety_Managment/Soap%25252fWater%25252fBucket.gif)
Ann