Honestly as Steve's Number One Glazer, I do think we need to give him something, like not saying to share the harem with him for certain scenes (tho it can be a possibility) or like, use the magic box to gender bend him and fuck him (or have us get gender bent and fucked, not picky myself), but he is a good person and his reaction to you dating his sister is very wholesome, let's grant him something good in his life.
And we can't do the "It's pride month, Steve is Asexual and was always Asexual" thing because he does fuck women as a Muppet, so he does seemingly want to fuck women, but then again we can do a "You know bro, while yes I do want to fuck women I want to work on myself first/I think our friendship is more important so if you are not ok with me dating your sister I will back off" which allows you to say yeah please don't date sam/date sam maybe.
Of course there is also the option to give him Lexxx, or maybe a third original sexbot you can't ever fuck, so there is also that.
Also like, of course we are going to focus more on Steve in Part 2, he was in a carbonite slab alongside Melvin in the bad future, WHY would he be into one of those? Was he the leader of the resistance in the bad timeline? Or is my crack theory that Lesbian Female Jeff Bezos who Fucks Robot Dogs is actually a evil time displaced MC that lost Alexa and was irreversibly turned into a woman by a freak magic box accident only to realise she's actually a trans woman, and she offered Steve to join her in her evil empire much like Melvin does the MC to get all the mind broken women he can get his hands on, only for Steve to rebuke her offer because he is a decent person and would never do shit like that to women against their will, let alone with his mom and sister also affected?