I would just pull them tonight man. 11.5 weeks is good. skip the worry.
Gaze at them, lustfully
most the time the nanners dont pop open and spread the love...now a full on male flower thats a different story altogether.
This is the longest I have taken this strain ~11.5 weeks right now. At 10 weeks I started lowering the day cycle to 11/13 and now 10/14. I'm thinking that is helping to express any intersex traits the strain has.
I think these are the conventional 'survival' pollen that female plants get when being sinsemilla leads them to express the survival instinct - no males around, "OK we'll try to make some pollen somehow."
Personally I think these are 'Good' nanners, i.e. not an expression of hermaphroditism. if you had the room, one option is to harvest most of the plant and leave the buds with pistils near the few bananas that you're getting. If she makes seeds, then it's another 4 or 5 week wait for them to mature. But they could be really good seeds.