(UTC) 

 : Also, the obvious, vulgar response is so far as I an many others know, the correct one: vulgarity does not trump reality.  In particular, whenever you say 'feeding, fighting, fleeing and... sexual reproduction', it's patently obvious that the last one is a euphemism for 'fucking', even to friends who wouldn't dare use the word 'fucking' in any form of conversation.  Political-correctness-gone-mad may try to use the word 'fornication' as an acceptable equivalent, but few people use the word 'fornication' when referring to sex in everyday life (for example, have you ever heard of the phrase 'fornicate me' used between two lovers during the act of sex?), but many do use the words 'fuck' and 'fucking'.  (Linguistically, the practical usage of the words 'fuck' and 'fucking' cannot be uniformly replaced with something else, and despite the attitudes of some, it has a well-established set of roles in the English language, see Wikipedia page on 'Fuck' for more.)   09:25, 15 November 2013