I've never quite understood the allure of sticking your winky in a bum
There's a perfectly servicable vagina just next door.

Of course this doesn't apply to those gay persons.
( Theoban What of it, Wed 27 May 2009, 15:58, archived)

Variety
it's the spice of life.
( Goatworrier had your mum and she was shit, Wed 27 May 2009, 15:59, archived)

Fair enough
I mean, as a fat nerd, even getting a vagina for winky-age would be variety enough for me, at the moment.
( Theoban What of it, Wed 27 May 2009, 16:00, archived)

they only ever live next door to men,
there are special streets set aside for them.
( Moon Girl Technologies horrendous beanbag, Wed 27 May 2009, 15:59, archived)

I didn't realise the positioning of vaginas was so regimented

( Theoban What of it, Wed 27 May 2009, 16:00, archived)

I've tried to put an honest answer to this...
I've come up with:

*- it's tighter
*- it's taboo
EDIT:
*- bragging rights

but I think the honest truth is that men will put their cocks almost anywhere
(likeajackhammer, Wed 27 May 2009, 16:01, archived)

There's also the
*nudge*
"you see her ? I've had her up the shitter" factor
( Goatworrier had your mum and she was shit, Wed 27 May 2009, 16:03, archived)

Always a proud moment for a bloke.
Especially if she is out with her hubby.
( Cleisthenes morning sickness is a bitch, Wed 27 May 2009, 16:09, archived)