Many brands make pocket-sized, stretchy sleeves that fit easily into a backpack or overnight bag.
Lie on your back on a firm surface (rather than a soft bed) with your head against a wall. Lift your legs and "walk" your feet down the wall toward your head, using the wall for leverage to compress your torso until your genitals are within reach. The Seated Crunch: how to self suck portable
Warning: Do this only in short bursts. Running a vacuum with a sealed inlet for too long can overheat the motor. Many brands make pocket-sized, stretchy sleeves that fit
If physical limitations make these positions impossible, many people look toward portable personal wellness devices. These are electronic masturbation aids designed to provide suction or vibration. Such devices are widely available through various online retailers specializing in adult health products and are designed for ease of transport and private use. The Seated Crunch: Warning: Do this only in short bursts
How the design needs to be (e.g., looks like an everyday object vs. obviously an adult toy) Share public link
Compact, non-electric pocket strokers (such as the Tenga Egg or Fleshlight Quickshot) are completely portable, fit into a travel bag, and use internal textures to mimic a mouth. By applying a strong water-based lubricant and controlling the air-vent at the end of the unit, you can create a localized vacuum seal that perfectly mirrors the suction of oral sex. Automatic Oral Simulators