Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: @TiganVarcolac &lt; feel this precious pleasure. 'Harder..' He whispered almost breathless and his index finger stroked along his waistband &gt;
This tweet contains emotions: 
joy, optimism