response: I'm not able to say, but each twin would be fertilized by their own sperm cell.
original_response: That would be correct.  Each egg has its own sperm cell
history: Do you happen to know any twins? I do not, do you and would they be fraternal twins? Fraternal twins are those who each got fertilized by a sperm cell. What is the difference between fraternal and identical? Identical twins develop from one zygote, while fraternal develop from two different eggs So I guess then boy/girl twins are always fraternal.
knowledge: In fraternal twins, each twin is fertilized by its own sperm cell.