Sit facing away from the couch with both palms pressed into the edge just outside of your hips. Walk your feet out away from your body and lift your hips off the couch (but keep your back close to it).
Lift your right leg off the floor and bend your knee into your chest, foot flexed.
Bend both elbows to perform a dip and lower your hips, pulling your right knee in closer to your chest.
As you press out of the dip and extend your arms, lift your hips and press out through your right heel, extending your right leg out in front of your hip.
Repeat this for 10 reps with the right leg, and then do 10 reps with the left.