So let's talk about gay sex. In case you haven't seen it yet, here's faithfulreader breaking down a sex scene with his hard-hitting comments about what he thinks works and doesn't work: Gay Sex Tips (Part V). Food for thought (no pun intended, if you read the scene). *Warning* - the linked post contains adult material.
Secondly, I just want to go on record as being of the opinion that saliva *can* be used as a lubricant for anal or (if needed) vaginal intercourse. It might not work for everyone, every time, but it's an option. There seems to be this general opinion in HP fanfic that it can't be done, and I... um... disagree. That is all.
*eta* Minotaur agrees with me on this last point. *eta2* Teh link. (OMG SO NWS) Thanks, k8nkane!