Wasn't Bocc taking Son Goku Challenges before he gave it to Zexyo, and isn't he taking Son Goku challenges now that Zexyo has quit?
Again, not against the rules, just discouraged. Additionally, that is defending the tailed beasts, not actually challenging to try to obtain them. Defending two tailed beasts at the same time requires a level of activity that alot of hosts would be questionable of having. From experience, I know you're relatively active, which is partly why I didn't bother bringing it up.
IF the matches were IC, then it would be physically impossible to do them both at the same time, unless (and this is a major unless) you were permitted to RP while doing the IC match. Several IC match type folks have staunchly gone that route, which would technically open them up as well to a single person challenging them at the same time.
If you remember Ichi I was also confused on this. I understood that you could only fight one person at a time, but you said you had fought in more than one challenge previously, so I took your word.
Kamui was telling me that there could only be one challenge at a time, but he was unsure as well.
Bottom line is, it is not currently against the rules, just discouraged/not advised.