Unrequited Love
Unrequited love is feelings of strong emotional attachment and desire directed towards a person that does...
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Dream?s sex dictionary includes more than 300 definitions. Here?s a list of those that begin with the letter U.
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Unisex Masturbation
Unisex masturbation is sexual stimulation which suits both male and female genders. Typically, the term is...
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Uniform Play
Uniform play refers to sex play that employs uniform clothing such as police, nurse, and student...
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Uncircumcised Penis
An uncircumcised penis is one in which the foreskin is still intact rather than having been...
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Uncanny Valley
The uncanny valley is a term coined by a Japanese robotocist in the 1970s to refer...
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Unbutton the Mutton
‘Unbutton the mutton’ is an Australian phrase that refers to the act of showing ones penis....
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Umbilical Cord
The umbilical cord runs from the stomch of a fetus or embryo to the placenta. It...
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Ultra Realistic 3.0 (UR3)
Ultra Realistic 3.0 is thermal plastic elastomer material used to make sex toys which closely mimic...
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Ugol’s Law
Ugol’s Law is quite simple. For every kink, there is more than one that is into...
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