3rd Muscle
The supernatural ability that some women’s pussies have to grip a dick during a vigorous banging session. It will usually result in immediate jizzing for all but the most experienced men.
Pat: Was that broad you brought home last night worth another run?
Lee: She was like a unicorn using her magical superpowers of the 3rd muscle to grip my dick I lost it and filled her full.
Lee: She was like a unicorn using her magical superpowers of the 3rd muscle to grip my dick I lost it and filled her full.