NO! NYO! The existence of magic in the game does not constitute throwing the basic laws of biology out the window! That is a copout! There needs to be versimilitude within the gameworld or else willing suspension of disbelief gets thrown out the window!
I'm playing a half-elf paladin who is going to get a lot of female admirers from different races, and I want to know what his kids would be like.
I also play a mutated human who's dating a dwarf chick. They want to have kids. What are those kids going to be like (aside from navy-blue skinned with black wings?)