Hi Friend,
Yes you can have multiple destination span port for a single source span port. But it can participate in only one SPAN session at a time (a destination port in one SPAN session cannot be a destination port for a second SPAN session).
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2960/12240se/scg/swspan.htm#wp1251490
You can use the following command
monitor session 1 source interface gig0/10
monitor session 1 destination interface Gi0/1 - 2
HTH
Ankur
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