I don't see why so many people immediately think fucking an eldar is "bad", when that's only specific to the Imperium.
The orks can't fuck them without the right genitalia, chaos/dark eldar would gladly fuck them, tyranids would nom, necrons have no genitalia, tau probably wouldn't because of their strict caste system, and eldar certainly would fuck other eldar, but...
For some reason it's "bad" because the Imperium thinks fucking any xeno is bad?
Protip, 3 out of 7 factions would fuck an eldar woman, and only 1 (or maybe two) is capable but unwilling. You've been outvoted, Imperials, fucking an eldar woman is perfectly acceptable.