In my lab, we engineer interactive devices that integrate directly with the user’s body. These devices are the natural succession to wearable interfaces and are designed to investigate how interfaces will connect to our body in a more direct and personal way. Previously, in my PhD (thesis), I explored a subset of this concept: interactive devices that interface directly with the user’s muscles. These devices actuate the user's body by means of computer-controlled electrical muscle stimulation (EMS), enabling touch/forces in VR or haptic training without the weight and bulkiness of conventional robotic exoskeletons. These devices gain their advantages, not by adding more technology to the body, but from borrowing parts of the user's body as input/output hardware, resulting in devices that are not only exceptionally small, but that also implement a novel interaction model, in which devices integrate directly with the user's body. Recently, we were able to generalize this concept to new modalities, including novel ways to interface with a user’s sense of temperature, smell and rich-touch sensations.