Why don't boys want their friends to go out with their sisters?
In reverse order, here's a list of people that a boy should try to avoid snogging: his ex-bird, his mate's ex-bird, his mate's sister, his mate, his mate's mum, his own mum.
I could go on. The point is, mates' sisters are pretty high on the list. The reason: it will annoy your mate. We're happy to lend out DVDs and even money but there are some things we don't like sharing. Sisters are like a nice pair of pants. Imagine finding out a mate has taken a shine to your pants and started wearing them around town, then taking them home and nuzzling them. You've known your pants their whole life and just wouldn't be comfortable seeing them together. Actually this isn't the greatest analogy ever but the point is: you'd hate to see your pants misused - and the same goes for your sister.
Boys don't trust other boys because we know what boys are like because we are boys.
Chances are we've seen our mates treat girls lightly, which may not bother us until they're literally doing it on our doorstep. In short, we're designed to protect our sisters from, well, people like us.
Of course boys often go out with their mates' sisters, and if they turn out to be perfect boyfriends there's no problem, once we've got over the weirdness. But a wrong move could cost you a friendship, so it's best to stick to the list.
Or if you really can't manage it - at least mums are old and wise enough to look after themselves.
Please remember: Kev is not an expert, he is just a boy and sometimes quite a silly boy. The main thing to remember when it comes to lads and relationships is to expect respect as the absolute minimum. Find out more about a Women's Aid campaign of the same name.
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