A girl that I’ve been dating ended things. Can I ask her to set me up with her younger sister?

There a lot of qualities that she liked about me, which is why she continued to date me as long as she did - hoping there would eventually be a spark. After about 4 months of cordial but fairly boring dating, she lost hope and ended things.

When she broke the news to me, she told me how much she had hoped to eventually develop feelings for me but was just unable to do so.

Since she still has a good opinion of me, and has no romantic feelings for me, would it be weird if I started dating her sister? She’s very protective of her and only wants her with guys who she trusts and who have good intentions.

Since she knows me, and we never slept together (sadly), I think it makes a lot of sense for me to try my luck with her younger sister. Would it be wrong for me to ask her to set us up? In her mind, I’m just a nice, trustworthy guy who she has no feelings for. I think that makes me a solid candidate for her sister.