Consider a hive (or rather a full mental fusion, like two colors of a plasticine mashed together into a new thing that isn't just the two of them together but a third thing entirely) mind with original members having a different sex, say consisting just of two people, woman and a man
On their own they used to be straight but in a state of this mental fusion their desires combine so they (as an entity) become fully bisexual even though the attraction for a certain sex originally came from those individual parts of them
A woman part tries to flirt with a guy she really likes but he turns out to be gay
But because the woman is mind fused with that other dude, this dude is the same person as she is and desires this guy just as much and may end up interesting that guy quite a lot
So, if he, that outsider guy, participates in an intercourse with that male part of the hive mind even though reciprocated interest is coming from that woman part of the hive (but it is inseparable from that of an entity) does it count as somewhat of a breach of consent if the hive doesn't disclose being a hive but in terms of behaviour and mind both bodies are Exactly the same different only in appearance
Does your response change depending on whether or not the entity can be unfused back into the separate parts