3 year old...guess the sex!

[srod]

It's been awhile since I've been on the forum but my sully has grown tremendously in my forum absence. Currently 3+ years of age and 15 lbs. Trying to gauge what sex it may be. I am guessing female but I am not sure. Plastron is flat. Any help will be appreciated.

 

[mike taylor]

Need a good pictures of the tail .

 

[srod]

Been trying to get a better picture of the tail. It's like they purposely hide it

 

[Tom]

That is looking female to me.