I don't like how the source is from rule34.xxx, but until I have the spoons to find the original post, I guess we'll have to deal with that.
Also, SESBIAN LEX IS REAL!
Also also, I genuinely do love seeing Elster and Ariane having intimate moments. I just want the space gays to be happy, ok?
You might be able to find the original source using Saucenao or googlelens or some other reverse image search. (I would do it myself, but it's 12:18 am over here and I need my 8 hours of sleep... And yeah, I too want the robosexual space gays to be happy.) Edit: I believe I've found the source. It was original uploaded onto Roarke's Patreon, specifically this Patreon post