A new $5 backer reward "Magic strapon". While equipped by the player character as underwear, they are considered to have a fully functioning penis. So female PCs can unlock the one off scenes with Emily etc, without having to change gender in the lab.
I'd love all the one off scenes to be reworked to cater for female players. But changing every one of those pictures as well as rewriting the scenes... it's most likely too much of an ask.
(Checking over the older suggestions in this thread, it's encouraging how many made it into the game.)