GUS wrote this "There is some evidence in other taxa that males insert a plug that prevents other males from breeding, in the Boa, this is (apparently) not the case."
I can testify that with corallus ruschenbergerii that is not the case either. Last year I bred a female with 2 very different males (1 strong patterned one and 1 solid yellow one) and the litter was 7 orange babies (they will turn yellow) and 2 patterned ones. It is more than obvious that both males are present in the litter, the pic shows just how obvious this can be!!!



