In 2005 I produced many really nice BRB's most of which were sold to various people. Mid 2008 one of the really nice unrelated pairs came back to visit for a while on a boarding/breeding arrangement. The owner wanted to keep them but needed someone to care for them while in graduate school and unable to keep them with him (housing restrictions). The two animals are Ying - Male litter mate to Amber/Phoenix/Wendy and Yang - female litter mate to Rosco.
The first breeding season (2009) saw no activity between them whatsoever. Not uncommon for first time breeding at 2.5 - 3.0 years old. For the second breeding season it was looking the same and I honestly wondered if there could have been a sexing error. In 2005 I had the babies sexed at East Bay Vivarium and there already was one documented sexing error. One of my holdback females, Rose, from that group was actually a male. Now known as Rosco - brother to Yang. I palpated them and all felt right but I'm not nearly as experienced at sexing adults as babies, I already know what sex my adults are. 
An ways, on April 28th they were in the water bowl together and it was a separate and feed day so not even thinking I started to pull one out and they both came - yup, full on copulation. The tail wrap was hidden underneath them. Needless to say I spoiled the mood and they soon parted and went to hide. Was a good news / bad news situation, now know they are a sexual pair but might have messed up the breeding process.
04/28 - after disturbing them but before they separated....
Almost two weeks go by and no signs of courting - crap, did I mess things up? Nope, Starting May 11th, they were like jackrabbits, courting and tail wrapped almost every day for almost two weeks. Including visual copulation on 05/16....
Courting was last noted on may 23rd and nothing noted until May 30th - wow, full on ovulation....
Pics are not totally clear but if you look about 1/3 from the right, front loop you can see a clear sudden increase in girth.... That extends to the left and back beyond what you can see.
Looks like babies are in her future!!!! 
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Thanks,
Dave Colling
www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count (02/01/2010):
42.61 BRB
27.40 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats
