By a staff reporter:
How to: For this position, have your partner sit with their back against the arm rest with legs outstretched, or for a smaller couch, have them sit on it properly. You straddle your partner's waist with your feet on the couch and knees bent. Now get ready for a thigh workout as you lower yourself onto his penis and raise yourself up and down.
Why it's great: This gives you most of the control, so you can dictate how fast or slow you want to go.