Yes but, you cant just talk with 2 girls who you have sex with, well you can but that would be:
Getting 1 or both girls into bdsm
Getting both girls sex with u at same time
thats it
Adding other girls, or maybe Jenny leaving will again go to other girls path, or maybe Jenny gets bf, and there is forsome but thats really boring well you read whole story between you, jenny and sarah. Having gf, then cheating her with person you live with it is excited and i want this story to continue beeing excited but i dont see any possible scenario for that, i hope am wrong.