Monster underwear

these monster take the form of underwear weather female or male, Males take the form of panties, females take the form of briefs but the one thing in common they all seek sex juices of there host they have the ability to shapeshift in to any panties they want but must consume other panties to mimic there form down to the very detail these monster have the ability to extend a tentacle from with in there form to help extract what's needed this tentacle can be used to possess there host to control small thing like where they go what they eat and turn them on when there hungry they input ideas in there host to do small thing tentacle can't ben felt by the host in less there inducing sex drive these being can't talk at all they they just are they seek out virgin's first other seconet