Here is something i'm really surprised nobody has thought to bring up before. If we want more summer stuff, but can't quite rush the main one and we'd like to see Summer do the unprotected horizontal tango with Morty and maybe get pregnant, why not use Survivalist Summer from the cronenberg dimension?
I bring it up only cause well. Seeing as how all of humanity is you know. Mutated freaks of nature and all that and Jerry is kind of taken. If Morty or any morty really got stuck there? He would get with that summer and wind up having a easy and fast lovelife with her. As she doesn't have any other options and masterbating can only do so much for her needs. And that has lots of potential you ask me. Especial sense...Well look at her. That summer is JACKED up with muscle. Would make for a great 'strong girl, weaker/smaller boy' relationship. She wouldn't care about protection or condoms or getting pregnant as it's been so long she wouldn't give a shit.
Why not use that? What do you all think?