Most cruiselines but not all will match you with someone your own sex.
Why would anyone want to sleep with someone you dont even know? I know I couldnt, especially the same sex. Im not against Gay people but that sounds kinda gay hooking up with an unknown roomie for 4 to 8 nights.
Mybe its Just not for me.
Edit: I just read what I wrote and needed to explain.... no Offence to any gay people that have read that.
on my behalf Im all for Gay marraige
(as long as both chicks are hot)