Both partners should comfortably accommodate minimum 6-7mm diameter sounds individually through multiple successful solo sessions before attempting buddy plugs, as partnered insertion creates additional coordination challenges making equivalent diameters feel more intense than solo sounding.

Establish clear verbal cues with one partner calling progression stages while the other confirms readiness before advancing. Insert extremely slowly over 2-3 minutes, stopping immediately if either partner signals discomfort regardless of depth achieved.

Buddy plugs create direct STI transmission pathways through shared steel surfaces contacting both urethras simultaneously. Use only within fluid-bonded relationships where partners already exchange unprotected bodily fluids and accept mutual infection risks, never with casual partners.

Start with 18-20cm buddy plugs providing adequate length for face-to-face or side-by-side positioning without awkward proximity. Shorter 15cm plugs demand very close positioning while longer 25cm designs add weight potentially causing urethral pulling.

Limit initial sessions to maximum 5-10 minutes given compounded risks from shared steel. Even experienced partners should rarely exceed 15-20 minutes as infection risks and tissue stress multiply with duration faster than solo sounding sessions.

Graduated buddy plugs accommodate different stretching levels through 1-3mm size differentials, letting experienced partners connect with less-advanced partners without forcing dangerous oversizing. Partners should ideally work toward matching capacities through individual progressive training.

Agree either partner can demand immediate removal without explanation at any moment. Establish hand signals for non-verbal communication situations. Keep sterile gauze and emergency contact information immediately accessible since complications may require rapid professional medical intervention.

Boil buddy plugs for 10 minutes after every use achieving complete sterilization of both insertable ends and connecting shaft. Standard toy cleaner washing proves insufficient for eliminating infection risks from shared steel surfaces contacting both partners.

Some couples maintain connection through orgasm though involuntary contractions and body movements create serious tissue damage risks. Remove buddy plugs before orgasm initially, then cautiously experiment with maintained connection after developing excellent coordination and control.

Buddy plugs carry all solo sounding risks plus cross-contamination creating mutual infection transmission, coordination failures causing bilateral tissue damage, and psychological pressures overriding individual comfort limits. Shared steel transmits one partner's bacteria directly into the other's urethra.