>>120149672Most Sexymilators don't have the strength to support two hosts, so they would either choose the weakest of the prey or would simply slink off if both individuals combined their strength to ward it off.
However, there is a larger variant that hides out deeper in caves that does have the strength for two hosts (or more, the largest one on record was theorized to have the strength to control up to five hosts at once!). In this scenario (which thankfully has only happened a couple of times), the Sexymilator does indeed fuse the bodies of the prey, though the heads remain separate and intact. Sexymiliators who are able to do this seem to have no issue keeping the heads alive, though there does seem to be some neurological alteration that occurs after fusion (at least, that is what is assumed, since two-headed specimens don't seem to be at all bothered by the fact that they are now sharing a body).