no.

why? Really, unless they are dating, there is no reason to make them embarrassed like that. Who would want to be shipped with someone that you don't like (in a romantic sense)? The friendship between the male friends might become awkward and fall apart because of your shipping.
And if you just keep it to yourself, its a bit better (but a little creepy, if you think about it, a person thinking about two people being together in his/her head) but really, just don't.