There have been a few oral ones, and The Handshake from Round 38 was a recent mutual masturbation one. There’s a bit of variety to them.
You should be able to search the Positions of the Week topic with ‘search this topic’ ticked and pull out all the ones that match your keyword. I may go and see how many have ‘oral’ in them. 
Edit: That did not work as well as I hoped. I got a lot of ‘not oral’. I wonder if I could tag them more obviously somehow? I shall mull it over.