with respect to the consentual aspect i don't see how this question differs from the 'how many people in your lifetime' question...

with respect to the question while it might be against some peoples values it isn't against other peoples values. one doesn't have to answer if one doesn't want to.

urm...

was this thread really a joke, or were you really genuinely curious?

i don't see any harm in asking...

er.. how do you define 'sex'?