Patience...

You choose to not blow your cover and be patient. After a little bit she starts stroking more. She sits up and starts using her right hand to rub your shaft, it's wet when she touches you with it. She intermittently rubs you, bringing her own wetness to your shaft to help lubricate her hand-job a little bit.

A bit of pre-cum begins to accumulate. She uses it to help her stroking but then you hear her mumble, "dammit, I can't make a mess." You feel more welling up on your shaft's head. Suddenly you feel her lips around it. She scoops what was there up with her lips and continues her strokes.

To your surprise you feel her left hand take your right and lift it to her folds. She resumes fingering herself, but this time using your hand as a toy. "I wish you could work some magic right now." You let her manipulate your hand but take some leeway to probe her yourself.

Meanwhile she still seems focused on rubbing your shaft and your getting close to cumming. She starts licking, then lightly suckling on your rod. When she noticed more pre-cum she began to constantly suck and lick and bring her entire mouth around your rod, stroking and licking until you finally came in her mouth. Just trying to make sure she didn't miss any of your cum she failed to notice, you more actively probe her pussy with your fingers.

After she finished cleaning up your shaft she zips your pants back up and buttons them. She then takes your wet hand and licks your fingers dry. A little more rustling and she leans up against you and falls asleep. You decide to do the same. You lay there, sleeping with both of these beautiful twins.