For me personally I've a couple of reasons, for one I just like her design especially after you give her the body alteration stuff, two she's one of the companions that feels like they actually like the PC outside of sex, three she's a bottom and i dig that, four I feel how she is as a character she would rather bare the PCs child rather then the other way around, and five and most importantly she is an elf and by the laws dictated by hentai she is considered a cocksleeve... I don't make the rules I just follow them