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The Together Lock-In is a vibrating strap on built for both people involved. It pairs two silicone dildos, one 5½-inch and one 4-inch, in a single dual-ended toy, so the wearer is filled and stimulated at the same time as their partner. A contoured base presses against the wearer's clitoris, an adjustable harness holds everything in place, and both ends vibrate. It suits couples who want strap-on sex to feel good on both sides of the harness.

How this vibrating strap on works for both of you

Most strap-ons give the wearer very little sensation. Here, one end of the toy goes inside the wearer while the other faces outward for the partner. The listed insertable lengths are 135 mm (about 5.3 inches) and 85 mm (about 3.3 inches). The shaped base between them sits against the wearer's body for external clitoral contact, and the toy flexes as you move, so it follows the angle of your hips rather than fighting it. Because it is worn face-to-face, it lends itself to positions where you can see each other.

Vibration on both ends

Together lists 10 adjustable vibration modes on each end, so both partners get vibration rather than just one. Experiment with lower modes while you find a rhythm, then switch up once you are both comfortable. It charges with a magnetic connector, which keeps the body sealed.

Who it suits

The internal end and clitoral base are shaped with a wearer who has a vulva in mind. If the person wearing it would rather have nothing inside, a single-ended dildo in a separate harness will be more comfortable. The outward shaft is a moderate 5½ inches, which makes it approachable for partners trying strap-on penetration for the first time, while still giving enough length for most positions.

The harness

The included harness is a traditional adjustable style made from polyester with metal (iron) hardware. Tighten the straps so the base sits snug against the pubic bone; a loose harness lets the toy wobble and makes thrusting harder to control. Some people like to put the internal end in first, then fasten the harness around it. Expect a bit of trial and error during your first session, and readjust the straps once the toy has warmed up and settled.

Tips for a first session

Use a generous amount of water-based lube on both ends. Missionary with the receiving partner's hips raised on a pillow is a good place to start, since it keeps the pace slow and lets you kiss. Rolling hips and grinding motions keep the base in contact with the wearer, while long strokes favour the partner. Talk as you go; it is a new sensation for both of you.

Bath, shower and cleaning

The toy is described as fully waterproof and submersible, so it can come into the bath or shower. Wash the silicone with warm water and mild soap or a toy cleaner after each use. Hand-wash the harness separately in cool soapy water and let it air-dry before storing.

Specifications

  • Brand: Together
  • Type: dual-ended vibrating strap-on with harness
  • Dildo lengths: 5½ in and 4 in (insertable 135 mm / 85 mm)
  • Vibration: 10 modes on each end
  • Material: silicone toy; polyester and iron harness
  • Charging: magnetic
  • Waterproof and submersible
  • Colour: purple

Explore more strap-ons and strap-on kits, or read our guide to couples sex toys.

Helpful Information

Frequently Asked Questions

Helpful answers about Together Lock-In Vibrating Strap-On.

How does a vibrating strap on work for the wearer?

With the Lock-In, one end of the toy goes inside the wearer and a contoured base presses on the clitoris, both with vibration. So the wearer isn't just providing; they feel movement and vibration through every thrust, which is the main reason people choose dual-ended strap-ons.

Which end goes inside the wearer?

Together doesn't specify, and the two ends are different sizes (about 5.3 and 3.3 inches insertable). Most people use the shorter end internally and the longer end for the partner, but you can try it either way to see what feels better.

Is this strap on dildo good for beginners?

It is a reasonable first strap-on because both lengths are moderate and the harness is fully adjustable. That said, wearing a dual-ended toy takes practice, so be patient with the fit and start with slow, rocking movements rather than fast thrusting.

Can I use the toy with a different harness?

Together sells it as a set with its own harness and doesn't list compatibility with other harnesses. Because it is a dual-ended toy, standard O-ring harnesses may not hold it the same way. The included harness gives the most stable fit.

Which lube works with the Lock-In?

Water-based lube is the safe choice for silicone. Add some to the internal end before fastening the harness and more to the outward end before penetration. Avoid silicone lube, which can wear down silicone toys over time.

Can we use it in the shower?

Yes, the toy is described as waterproof and submersible. Water washes lube away quickly, so reapply often, and stand on a non-slip mat. The harness can get wet but will need time to dry afterwards.

What other Together toys do you carry?

The Together range also includes the Double Tap couples vibrator, remote couples vibrators and realistic dildos. Browse the full Together collection to compare designs, sizes and features side by side.

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