Alrighty, a couple of things:
The Mass Effect animation sucks. I didn't do a clean job when preparing everything for animation and now I'm stuck with a mess of unnecessary layers, corrections, counter-animations and on top of that an incredibly slow viewport, which makes it hard to get an idea of the final animation. I may quickly wrap up what I have so far and release the unfinished clip some time, but right now I don't want to bother with it.
No reason to hold the Alexstrasza animation back then. Unfortunately, after everything was rendered, I noticed that the cum was acting all weird ... basically it was glittering ^^" So I made some tweaks and am re-rendering the last part. Once that's finished I'll post the whole clip.
Until then here's a blurry gif =)
Update: Download it here or here.