How to Use an STP: From First Try to Second Nature

To use an STP, position the cup flush against your body so it forms a seal, angle the shaft slightly downward, and let gravity do the rest. That's the whole mechanism. Practice at home first — the shower is the right room for it. We've been making Sam the STP for exactly this.

An STP is not complicated. It's a cup, a shaft, and physics. What takes a little time is trusting it — and trust comes from repetition, not talent. Here's the technique the way we'd explain it across the counter.

How does an STP actually work?

One principle: the seal. The cup sits against your body, surrounding the urethra. When the seal is solid and the shaft points down, gravity carries everything through. No pushing, no straining, no special anatomy required.

Sam is a 3-in-1 — the first nationally distributed trans STP. Stand to pee. Pack all day. Play when you're ready. One piece of silicone, $64.99, in multiple skin tones. Because Sam is built for all-day wear, the technique below becomes part of your ordinary routine, not a special occasion.

How do you use an STP packer, step by step?

1. Position the cup. Press it flush against your body so the rim makes full contact all the way around. Gaps are where leaks come from, so this step is the one that matters.
2. Check the seal. A small adjustment now beats a surprise later. You'll learn what "sealed" feels like on your own body — that feel is the actual skill.
3. Angle down. Tip the shaft toward the bowl or urinal. Gravity needs a downhill path.
4. Relax and go. Don't rush the stream and don't cut it off abruptly. Let it finish, give a small shake, tuck, done.

That's it. Everything else is reps.

How do I practice without the pressure?

In the shower. Warm water, zero stakes, instant cleanup. Practice the position, the seal check, and the angle until you stop thinking about the steps and start just doing them. There's a click moment — seal, angle, and confidence line up — and shower reps are how you get there. Only take Sam out into the world once home practice feels boring. Boring is the goal.

A note on nerves: the first public restroom is a threshold for a lot of us. You've already done the hard part at home. The stall is always there if you want it, and nothing about using one is a failure.

Can Sam do more than stand to pee?

Yes — that's the point of the 3-in-1. Sam packs all day as a soft packer, and when the night changes direction, the Erection rod insert ($9.99) slides in and converts Sam from soft packer to penetrative toy. Pee, pack, play — one piece of gear, no bag of spares.

If you want a toy built specifically around play — posable, dual-density, worn in a harness when you know where the evening is going — that's a different category. We wrote up what pack-and-play means separately, because it isn't the same thing as all-day packing, and mixing them up leads people to the wrong gear.

How do I keep it in place?

Two good answers:

• Snug underwear. Briefs or boxer briefs with real structure hold Sam where you put it. Simple and free.
• The STP & Packing Strap ($29.99). A two-strap thigh system in real sizes — XS through 2XL, measured around the widest part of your upper thigh (16–37"; size up when in doubt) — that holds Sam steady through a full day of moving around. It also controls the profile — pack up or pack down — so you decide what shows and what doesn't.

Position matters as much as hardware. Set Sam where you'd want to reach it, and check it once in a mirror. Then stop checking. It's fine.

How do I clean an STP?

Rinse after each use. At the end of the day, wash with warm soapy water and let it air dry fully before wearing again — fully dry matters, since the cup and shaft hold moisture. Sam is silicone, so if the erection rod turns the night toward play, use water-based lube; silicone lube degrades silicone toys.

One more thing, since it comes up at office hours with Chelsea (Wednesdays, 9pm ET): plenty of people pair packing with pumping. If that's part of your picture, start with our guide to what bottom growth is.

Questions we hear

How do you use an STP packer? Press the cup flush against your body to form a seal, angle the shaft downward, relax, and let gravity carry the flow through. The seal is the whole technique — once you can feel when it's right, the rest is routine.

How do I practice using an STP? At home, in the shower, until it's boring. Warm water, no stakes, easy cleanup. Practice the seal check and the angle as one motion. Take it public only after home reps feel automatic.

How does the erection rod insert work? The $9.99 rod slides into Sam and converts it from a soft packer into a penetrative toy. Remove it and Sam goes back to packing. Use water-based lube — silicone lube and silicone toys don't mix.

How do I keep my STP in place all day? Snug, structured underwear handles most days. For more security and profile control, the STP & Packing Strap ($29.99) is a two-strap thigh system (real sizes XS–2XL) — pack up or pack down, your call.