Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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