rubber ducking

Used to describe the act of sexual intercourse between two females while using a strap-on for penetration. ie-one form of lesbian sex with the use of toys.

Kristen said to Tiffany, "I can't wait to get you home. You look like you could use a good rubber ducking."

"You rubber ducked me so good last night. Brandon was never that flexible in bed," Sonya said to Jodi.

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