Rika noticed Izuna being overeager by this, but silently promises her that it will be anything but pleasurable.  She does the same as she did with Yuka's pet with Izuna using the same hook to strung her up and making the two petfucks face each other and their bodies practically touching or brushing close together.  The renowned kittengirl stood back and admired at her work, allowing her victims to savor this erotic moment while they still could.  Deciding that that is enough 'quality time' with them she proceeded with their torture, fingerfucking their assholes with earnest and spiteful vigor.