Resposta simples: por que não?
Além disso, está implícito em Mass Effect 2 que as Asari de alguma forma afetam outras raças, fazendo com que elas considerem o Asari muito atraente e parecido com sua própria raça.
At the Eternity bar, a conversation occurs between a human, a salarian, and a turian who are watching an asari dancer. The men debate whose species the asari most resembles. Upon each forwarding their own race, the human theorizes that the asari might be using mind control to appear attractive to other species. It is more likely that the three men were merely focusing on characteristics their species shares with the asari (e.g., body shape for humans, skin color for salarians, head fringe for turians). All three men compliment the asari's flexibility and grace. This conversation implies that asari are considered attractive to many species, which would prove useful considering their method of reproduction. Mordin Solus postulates that the asari's cross-species attraction may be neurochemical in nature. Asari:Biology
Para alguns homens, no entanto, pode ser que os Asari representem sua única oportunidade realista para as crianças. Concedido, estas crianças não compartilharão nenhuma genética com o pai deles / delas, mas para algum que não importará. Em Mass Effect 2 há um Krogan tentando atrair um Asari em Illium, e Shepard sugere que ele pode estar fazendo então porque ele não pode ter seus próprios filhos. Vivendo com o genophage, seria improvável que um Krogan individual pudesse produzir descendentes de Krogan, e assim eles podem se voltar para a Asari para preencher esse desejo.
Aqui está a conversa acima sobre Illium:
SALARIAN: I still don't see why we're here. Salarians do not "get married." My family simply negotiated a reproduction contract--
HUMAN: Whatever. It's the closest you guys get to a wedding. And that means you get a bachelor party. End of story.
SALARIAN: I don't understand. Humans celebrate wedding contracts by tempting infidelity? That makes no sense!
HUMAN: Calm down, man! Don't embarrass me in front of the stripper.
SALARAIN: What do turians do? Do turians do this, too?
TURIAN: I'm just here for the drinks.SALARIAN: You said that bachelor parties are for very close friends. We're just co-workers. HUMAN: We've been co-workers for five years, though. Aren't salarian years like dog years? SALARIAN: Okay, now -- that's offensive.
SALARIAN: I appreciate the gesture, but my people don't even have sex drives the way humans do.
HUMAN Uh-huh. Take a look at that, man. Everybody likes the asari. Everybody.
SALARIAN: But we actually reproduce by... my word, she is very... limber. I can appreciate her dancing in an aesthetic manner, but... I don't have... feelings of... hmm... she is a lovely shade of blue.
TURIAN: Okay, that makes my legs hurt just watching it, and my knees are meant to bend that way.SALARIAN: This isn't as bad as I had feared. It's actually... i-is it warm in here?
HUMAN: The little divot in her abdomen? It's called a belly button. Humans and asari have them, and you're going to be doing shots out of it later tonight.
TURIAN: That can't be sanitary.
HUMAN: Not the point, man!SALARIAN: I can understand why I might find asari attractive. But how can they be attractive to humans, too? They look just like salarians!
HUMAN: What? They look exactly like us! I'm... I'm not seeing the salarian thing at all. At all.
TURIAN: You're both wrong. Asari look just like blue turians. Look at the head-fringe!
HUMAN: Wait. You don't think they're, like, mind-controlling us to see them as attractive, do you?
TURIAN: Please be quiet. You're going to ruin asari for me. And there aren't many turian women on Illium.SALARIAN: Well, I suppose watching just one more dance wouldn't hurt.
HUMAN: Ha-ha-ha! That's the spirit!
TURIAN: As long as I'm not paying for the drinks.