*SPOILER* *SPOILER* *SPOILER*
I was hoping for an expanded cg scene, when main character first meets the symbiant and it shoves its tentacles down his pants, where you could choose to let the symbiant keep going, and it progresses to it unzip his pants and taking them off. Then you can see the symbiants tentacles sucking him off. Also I can imagine the symbiant having mini tentacles inside his tentacles, and it would have been hot to see them explore the main characters peehole.
*SPOILER* *SPOILER* SPOILER*