it all depends, with my previous boyfriend it would take me less than 10 minutes, but it wasn't a very satisfactory orgasm, but with my current boyfriend it takes me longer, sometimes over 30 minutes, but they are WAY stronger
It sooo depends on circumstance and how turned on I am. I reach orgasm better when I am on top too. If I am on top it definitely takes less than 10 minutes. Any other way and it may take a lot longer. With a crappy toy and not my honey it can take well over 30 mins. Even with a good toy I will take longer than during the real thing.