You're snapped out of your arousal when you find your wandering eyes drifting over the ass of a certain girl-- a girl whose ass is staring right back at you. Surprised, you take a step back, dick throbbing in the open air, suddenly getting a sense that, while there's nothing wrong with you being publicly indecent, there MIGHT be an issue with you staring and flaunting your arousal.
You raise your hands defensively, not wanting to get into any trouble, but find yourself reflexively channeling your morphing powers to get out of this. There's a blur... and now you're on a cute... you'd guess nineteen-year old body. The body of one of the teens! You pat yourself down, looking over yourself to which one you are, and don't spot a head on your foot. So, with only a moments pause, you turn your waist around to stare down at your lightly undone yoga pants, eyes meeting the eyes on your ass cheeks.
They blink at you. You blink back, and look over at your old body, the cute 20-something. She still has your dick where her face should be, but you notice a jarringly placed foot sticking out of the unzipped crotch of her pants. It stands there, motionless... save for the occasional wiggle of its toes and the still-throbbing cock, likely stimulated in the open air.
With a bit of a shiver, you note that the instructor has started preforming again, now undaunted by the blind, mute and deaf spectator. The girl that you guess lives in your ass gives you a glance of urgency as you suddenly try to follow along the yoga class. It's unskillful, but she's slow enough for you to keep up.
However, you're not here to do yoga... even if you do want to go somewhere and get to know your bodymate a little more closely. With a hum, you rub your chin, gazing around, you decide to take the old body home!