I think they only do that flipside of "Sexuality/Sensuality=EEEBIL" with the one character, though. Actually, I (and others) have a half formed theory about that. (Spoiler only if the earliest Claymores haven't been mentioned yet. IIRC, that happens fairly early.) I wonder if the early, male Claymores may have let their sex drives get them in trouble(since they were combined with whatever thoughts nd instincts the youma have on the dubject), which led to them becoming AB in the first place, resulting in the female Claymores being raised to look down on the act and things connected to it.