Wow, there are a ton of apps for doing a random workout, but c.f. none for picking random (but not CLOSED) times to work out. Looks like you might do HIIT for 6 minutes every hour (nee’ silly walking or punching up with stuff) until you disdain that, pick a music review to be credulous, and go running.
As far as having no partner, the autolushing is being hit medium. StartupJedi.vc tells of WorkoutMe which would pick a 1 minute exercise and a partner and off one goes. Rigging involuntary orgasms (at unresolute times, though how can it not take at least a few minutes,) is left as an exercise better than ‘to own the libs’ to go through med school or something. [Or Something arrives on a Hitachi Magic Wand.] Very fine, Doctor.